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Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians process the backshell for NASA's Mars Science Laboratory (MSL). The backshell carries the parachute and several components used during later stages of entry, descent and landing, and is one part of the spacecraft's heat shield which, when both are integrated is called an aeroshell. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jack Pfaller KSC-2011-4314

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians process the backshell for NASA's Mars Science Laboratory (MSL). The backshell carries ... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians add weights (ejectable ballast mass) to the aeroshell, a component of NASA's Mars Science Laboratory (MSL), in order to conduct a spin and balance test. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-4402

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians add weights (ejectable ballast mass) to the aeroshell, a component of NASA's Mars Scien... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida the aeroshell, a component of NASA's Mars Science Laboratory (MSL), has been secured onto a spin stand for testing. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jack Pfaller KSC-2011-4335

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida the aeroshell, a component of NASA's Mars Science Laboratory (MSL), has been secured onto a spin sta... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians add weights (ejectable ballast mass) to the aeroshell, a component of NASA's Mars Science Laboratory (MSL), in order to conduct a spin and balance test. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-4400

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians add weights (ejectable ballast mass) to the aeroshell, a component of NASA's Mars Scien... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians use an overhead crane to move the aeroshell, a component of NASA's Mars Science Laboratory (MSL), to a spin stand for testing. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jack Pfaller KSC-2011-4331

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians use an overhead crane to move the aeroshell, a component of NASA's Mars Science Laborat... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians use an overhead crane to move the aeroshell, a component of NASA's Mars Science Laboratory (MSL), to a spin stand for testing. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jack Pfaller KSC-2011-4330

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians use an overhead crane to move the aeroshell, a component of NASA's Mars Science Laborat... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians use an overhead crane to lower the aeroshell, a component of NASA's Mars Science Laboratory (MSL), onto a spin stand for testing. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jack Pfaller KSC-2011-4334

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians use an overhead crane to lower the aeroshell, a component of NASA's Mars Science Labora... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laboratory (MSL), back to a work stand after a spin and balance test. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4393

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laborat... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have moved the aeroshell, a component of NASA's Mars Science Laboratory (MSL), back to a work stand after a spin and balance test. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4397

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have moved the aeroshell, a component of NASA's Mars Science Laboratory (MSL), back to ... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laboratory (MSL), back to a work stand after a spin and balance test. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4391

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laborat... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laboratory (MSL), back to a work stand after a spin and balance test. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4395

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laborat... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laboratory (MSL), back to a work stand after a spin and balance test. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4394

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laborat... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laboratory (MSL), back to a work stand after a spin and balance test. The aeroshell consists of the backshell which carries the parachute and several components used during later stages of entry, descent and landing, and the spacecraft's heat shield. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4389

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians using an overhead crane, move the aeroshell, a component of NASA's Mars Science Laborat... More

Mars Rover Curiosity Raising Turret

Mars Rover Curiosity Raising Turret

This photograph of the NASA Mars Science Laboratory rover, Curiosity, was taken during testing on June 3, 2011. The turret at the end of Curiosity robotic arm holds five devices. NASA/JPL-Caltech

Mars Rover Curiosity, Front View

Mars Rover Curiosity, Front View

This photograph of the NASA Mars Science Laboratory rover, Curiosity, was taken during mobility testing on June 3, 2011. The location is inside the Spacecraft Assembly Facility at NASA Jet Propulsion Laboratory... More

Mars Rover Curiosity Arm Held High

Mars Rover Curiosity Arm Held High

This photograph of the NASA Mars Science Laboratory rover, Curiosity, was taken during testing on June 3, 2011. The turret at the end of Curiosity robotic arm holds five devices. In this view, the drill is at t... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to separate the two components of the aeroshell, an element of NASA's Mars Science Laboratory (MSL), after testing. The aeroshell consists of the spacecraft's heat shield and the backshell which carries the parachute and several components used during later stages of entry, descent and landing. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4518

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to separate the two components of the aeroshell, an element of NASA's Mars Scie... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians, using an overhead crane, separate the two components of the aeroshell, an element of NASA's Mars Science Laboratory (MSL), after testing. The aeroshell consists of the spacecraft's heat shield and the backshell which carries the parachute and several components used during later stages of entry, descent and landing. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4526

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians, using an overhead crane, separate the two components of the aeroshell, an element of N... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians, using an overhead crane, separate the two components of the aeroshell, an element of NASA's Mars Science Laboratory (MSL), after testing. The aeroshell consists of the spacecraft's heat shield and the backshell which carries the parachute and several components used during later stages of entry, descent and landing. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4524

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians, using an overhead crane, separate the two components of the aeroshell, an element of N... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians, using an overhead crane, separate the two components of the aeroshell, an element of NASA's Mars Science Laboratory (MSL), after testing. The aeroshell consists of the spacecraft's heat shield and the backshell which carries the parachute and several components used during later stages of entry, descent and landing. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4523

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians, using an overhead crane, separate the two components of the aeroshell, an element of N... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to separate the two components of the aeroshell, an element of NASA's Mars Science Laboratory (MSL), after testing. The aeroshell consists of the spacecraft's heat shield and the backshell which carries the parachute and several components used during later stages of entry, descent and landing. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4517

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to separate the two components of the aeroshell, an element of NASA's Mars Scie... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians, attaching an overhead crane, prepare to separate the two components of the aeroshell, an element of NASA's Mars Science Laboratory (MSL), after testing. The aeroshell consists of the spacecraft's heat shield and the backshell which carries the parachute and several components used during later stages of entry, descent and landing. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-4520

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians, attaching an overhead crane, prepare to separate the two components of the aeroshell, ... More

Cape Canaveral, Fla. -- NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, arrives at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida aboard an Air Force C-17 cargo plane. Also aboard is the rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4799

Cape Canaveral, Fla. -- NASA's Mars Science Laboratory (MSL) rover, kn...

Cape Canaveral, Fla. -- NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, arrives at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida aboard an Air Force C-17 cargo plane. Al... More

CAPE CANAVERAL, Fla. -- Workers unload NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. It arrived at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida aboard an Air Force C-17 cargo plane along with the MSL rover known as Curiosity. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4804

CAPE CANAVERAL, Fla. -- Workers unload NASA's Mars Science Laboratory ...

CAPE CANAVERAL, Fla. -- Workers unload NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. It arrived at the Shuttle Landin... More

Cape Canaveral, Fla. -- Workers prepare to unload NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. It arrived at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida aboard an Air Force C-17 cargo plane along with the MSL rover known as Curiosity. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4801

Cape Canaveral, Fla. -- Workers prepare to unload NASA's Mars Science ...

Cape Canaveral, Fla. -- Workers prepare to unload NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. It arrived at the Shu... More

CAPE CANAVERAL, Fla. -- Workers begin to unload NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. It arrived at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida aboard an Air Force C-17 cargo plane along with the MSL rover known as Curiosity. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4802

CAPE CANAVERAL, Fla. -- Workers begin to unload NASA's Mars Science La...

CAPE CANAVERAL, Fla. -- Workers begin to unload NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. It arrived at the Shutt... More

CAPE CANAVERAL, Fla. -- Workers unload NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. It arrived at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida aboard an Air Force C-17 cargo plane along with the MSL rover known as Curiosity. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4803

CAPE CANAVERAL, Fla. -- Workers unload NASA's Mars Science Laboratory ...

CAPE CANAVERAL, Fla. -- Workers unload NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. It arrived at the Shuttle Landin... More

CAPE CANAVERAL, Fla. -- Workers load a container holding NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars, onto a transporter after arrival at NASA Kennedy Space Center's Shuttle Landing Facility in Florida. The MSL rover known as Curiosity is also aboard the Air Force C-17 cargo plane ready for unloading. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4805

CAPE CANAVERAL, Fla. -- Workers load a container holding NASA's Mars S...

CAPE CANAVERAL, Fla. -- Workers load a container holding NASA's Mars Science Laboratory (MSL) rocket-powered descent stage that will fly the rover during the final moments before landing on Mars, onto a transpo... More

CAPE CANAVERAL, Fla. -- Workers unload a container holding NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, from an Air Force C-17 cargo plane after arrival at NASA Kennedy Space Center's Shuttle Landing Facility in Florida. Already unloaded is the MSL rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4807

CAPE CANAVERAL, Fla. -- Workers unload a container holding NASA's Mars...

CAPE CANAVERAL, Fla. -- Workers unload a container holding NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, from an Air Force C-17 cargo plane after arrival at NASA Kennedy Space Center's Shuttle... More

CAPE CANAVERAL, Fla. -- Workers transport a container holding NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, to the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida. Already delivered to the PHSF is the MSL rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4809

CAPE CANAVERAL, Fla. -- Workers transport a container holding NASA's M...

CAPE CANAVERAL, Fla. -- Workers transport a container holding NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, to the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in... More

CAPE CANAVERAL, Fla. -- Workers deliver a container holding NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, to the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida. Already delivered to the PHSF is the MSL rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Troy Cryder KSC-2011-4810

CAPE CANAVERAL, Fla. -- Workers deliver a container holding NASA's Mar...

CAPE CANAVERAL, Fla. -- Workers deliver a container holding NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, to the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in F... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have unwrapped the protective cover from NASA's Mars Science Laboratory (MSL) rocket-powered descent stage thrusters for documenting and inspection. The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4871

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have unwrapped the protective cover from NASA's Mars Science Laboratory (MSL) rocket-po... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have removed the protective wrapping from the rocket-powered descent stage for NASA's Mars Science Laboratory (MSL). The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4881

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have removed the protective wrapping from the rocket-powered descent stage for NASA's M... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to unwrap the rocket-powered descent stage for NASA's Mars Science Laboratory (MSL). The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4868

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to unwrap the rocket-powered descent stage for NASA's Mars Science Laboratory (... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have removed the protective wrapping from all of NASA's Mars Science Laboratory (MSL) rocket-powered descent stage thrusters for documenting and inspection. The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4877

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have removed the protective wrapping from all of NASA's Mars Science Laboratory (MSL) r... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, workers using an overhead crane lift the container cover from NASA's Mars Science Laboratory (MSL) rover, known as Curiosity. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4885

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, workers using an overhead crane lift the container cover from NASA's Mars Science Laboratory (MSL) ... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have removed the protective wrapping from the rocket-powered descent stage for NASA's Mars Science Laboratory (MSL). The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4882

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have removed the protective wrapping from the rocket-powered descent stage for NASA's M... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective wrapping from the next set of NASA's Mars Science Laboratory (MSL) rocket-powered descent stage thrusters for documenting and inspection. The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4876

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective wrapping from the next set of NASA's Mars Science Laboratory (MSL... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to unwrap the rocket-powered descent stage for NASA's Mars Science Laboratory (MSL). The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4867

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to unwrap the rocket-powered descent stage for NASA's Mars Science Laboratory (... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians begin to unwrap the protective cover from NASA's Mars Science Laboratory (MSL) rocket-powered descent stage thrusters for documenting and inspection. The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4869

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians begin to unwrap the protective cover from NASA's Mars Science Laboratory (MSL) rocket-p... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, workers prepare to attach an overhead crane to lift the container cover from NASA's Mars Science Laboratory (MSL) rover, known as Curiosity. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4883

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, workers prepare to attach an overhead crane to lift the container cover from NASA's Mars Science La... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, workers removed the container cover from NASA's Mars Science Laboratory (MSL) rover, known as Curiosity. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4886

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, workers removed the container cover from NASA's Mars Science Laboratory (MSL) rover, known as Curio... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective wrapping from the next set of NASA's Mars Science Laboratory (MSL) rocket-powered descent stage thrusters for documenting and inspection. The descent stage will fly the MSL rover, Curiosity, during the final moments before landing on Mars. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4875

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective wrapping from the next set of NASA's Mars Science Laboratory (MSL... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians process the backshell for NASA's Mars Science Laboratory (MSL). The spacecraft's backshell, which carries the parachute and several components used during later stages of entry, descent and landing, when joined with the heat shield, is called an aeroshell. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Charisse Nahser KSC-2011-4872

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians process the backshell for NASA's Mars Science Laboratory (MSL). The spacecraft's backsh... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective cover from NASA's Mars Science Laboratory (MSL) rover known as Curiosity, before processing and testing. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-4944

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective cover from NASA's Mars Science Laboratory (MSL) rover known as Cu... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective cover from NASA's Mars Science Laboratory (MSL) rover known as Curiosity, before processing and testing. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-4943

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective cover from NASA's Mars Science Laboratory (MSL) rover known as Cu... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, NASA's Mars Science Laboratory (MSL) rover known as Curiosity, is secured on a work stand for processing (background left). The spacecraft's backshell (right), which carries the parachute and several components used during later stages of entry, descent and landing, in addition is the rocket-powered descent stage (foreground right), also visible in the image. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-4950

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, NASA's Mars Science Laboratory (MSL) rover known as Curiosity, is secured on a work stand for proce... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians attach an overhead crane to NASA's Mars Science Laboratory (MSL) rover known as Curiosity, for its move to a work stand. The spacecraft's backshell (right), which carries the parachute and several components used during later stages of entry, descent and landing, also is visible in the image. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-4941

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians attach an overhead crane to NASA's Mars Science Laboratory (MSL) rover known as Curiosi... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective cover from NASA's Mars Science Laboratory (MSL) rover known as Curiosity, before processing and testing. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-4945

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians remove the protective cover from NASA's Mars Science Laboratory (MSL) rover known as Cu... More

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, NASA's Mars Science Laboratory (MSL) rover known as Curiosity, is secured on a work stand for processing. The spacecraft's backshell (left), which carries the parachute and several components used during later stages of entry, descent and landing, in addition is the rocket-powered descent stage (background), also is visible in the image. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-4948

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at...

Cape Canaveral, Fla. -- At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, NASA's Mars Science Laboratory (MSL) rover known as Curiosity, is secured on a work stand for proce... More

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, the external and internal protective layers of the shipping cask are lifted away from the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission. The MMRTG no longer needs supplemental cooling since any excess heat generated can dissipate into the air in the high bay. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6665

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at...

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, the external and internal protective layers of the shipping cask are lifted away from the multi-mis... More

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, enclosed in a shipping cask in the MMRTG trailer, arrives at the RTG storage facility at NASA's Kennedy Space Center in Florida. During transport, coolant flows through hoses connected to the cask to dissipate any excess heat generated by the MMRTG. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6646

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric ...

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, enclosed in a shipping cask in the MMRTG trailer, arrives at the RTG sto... More

CAPE CANAVERAL, Fla. -- Workers use a forklift to offload the shipping cask enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission from the MMRTG trailer that delivered it to the RTG storage facility at NASA's Kennedy Space Center in Florida. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6648

CAPE CANAVERAL, Fla. -- Workers use a forklift to offload the shipping...

CAPE CANAVERAL, Fla. -- Workers use a forklift to offload the shipping cask enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission from the MMRTG tr... More

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, a Department of Energy contractor employee guides the external and internal protective layers of the shipping cask as they are lifted from around the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission. The MMRTG no longer needs supplemental cooling since any excess heat generated can dissipate into the air in the high bay. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6664

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at...

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, a Department of Energy contractor employee guides the external and internal protective layers of t... More

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, Department of Energy contractor employees remove the external and internal protective layers of the shipping cask enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6662

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at...

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, Department of Energy contractor employees remove the external and internal protective layers of the... More

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, a crane lifts the shipping cask enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission from its transportation pallet. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6658

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at...

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, a crane lifts the shipping cask enclosing the multi-mission radioisotope thermoelectric generator (... More

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, Innovative Health Applications employee David Lake measures the level of radioactivity emitted from the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission as the external protective layer of the shipping cask is removed. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6661

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at...

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, Innovative Health Applications employee David Lake measures the level of radioactivity emitted from... More

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, the shipping cask enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission is lifted from around the MMRTG using guide rods installed on the support base. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6660

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at...

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, the shipping cask enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NAS... More

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission, enclosed in a shipping cask, rolls into the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6651

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric ...

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission, enclosed in a shipping cask, rolls into the high bay of the RTG storage facili... More

CAPE CANAVERAL, Fla. -- In the RTG storage facility at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission, with guide rods still installed on its support base, has been uncovered on the high bay floor. The MMRTG no longer needs supplemental cooling since any excess heat generated can dissipate into the air in the high bay. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6666

CAPE CANAVERAL, Fla. -- In the RTG storage facility at NASA's Kennedy ...

CAPE CANAVERAL, Fla. -- In the RTG storage facility at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission, with gu... More

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, Innovative Health Applications employee Mike McPherson measures the level of radioactivity emitted from the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory mission, enclosed in a shipping cask at right. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. MSL's components include a compact car-sized rover, Curiosity, which has 10 science instruments designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Frankie Martin KSC-2011-6654

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at...

CAPE CANAVERAL, Fla. -- In the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, Innovative Health Applications employee Mike McPherson measures the level of radioactivity emitted ... More

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, left, listens as Ben Thoma, the MSL Assembly, Test and Launch Operations mechanical lead, discusses the NASA's Mars Science Laboratory (MSL) rover known as Curiosity at the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Waleed Abalati, right, also took part in the tour. The backshell carries the parachute and several components used during later stages of entry, descent and landing. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-5069

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, left, li...

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, left, listens as Ben Thoma, the MSL Assembly, Test and Launch Operations mechanical lead, discusses the NASA's Mars Science Laboratory (MSL) rover k... More

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, facing camera, and NASA Chief Scientist Waleed Abalati listen as Ben Thoma, the MSL Assembly, Test and Launch Operations mechanical lead, discusses the NASA's Mars Science Laboratory (MSL) rover known as Curiosity at the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Waleed Abalati, right, also took part in the tour. The backshell carries the parachute and several components used during later stages of entry, descent and landing. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-5070

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, facing c...

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, facing camera, and NASA Chief Scientist Waleed Abalati listen as Ben Thoma, the MSL Assembly, Test and Launch Operations mechanical lead, discusses ... More

Cape Canaveral, Fla. - At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, NASA Deputy Administrator Lori Garver, left, is shown NASA's Mars Science Laboratory (MSL) rover known as Curiosity. Benjamin Thoma, the MSL Assembly, Test and Launch Operations mechanical lead, is talking to Garver about the spacecraft and mission. In the background is the spacecraft's descent stage. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-5063

Cape Canaveral, Fla. - At the Payload Hazardous Servicing Facility at ...

Cape Canaveral, Fla. - At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, NASA Deputy Administrator Lori Garver, left, is shown NASA's Mars Science Laboratory (MSL) rover kno... More

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, facing camera, NASA Chief Scientist Waleed Abalati, left, and Ben Thoma, the MSL Assembly, Test and Launch Operations mechanical lead, discusses the NASA's Mars Science Laboratory (MSL) rover known as Curiosity at the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Waleed Abalati, right, also took part in the tour. The backshell carries the parachute and several components used during later stages of entry, descent and landing. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-5071

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, facing c...

Cape Canaveral, Fla. – NASA Deputy Administrator Lori Garver, facing camera, NASA Chief Scientist Waleed Abalati, left, and Ben Thoma, the MSL Assembly, Test and Launch Operations mechanical lead, discusses the... More

Cape Canaveral, Fla. - NASA Deputy Administrator Lori Garver, fourth from left, looks over NASA's Mars Science Laboratory (MSL) rover known as Curiosity as it sits in a workstand at the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-5066

Cape Canaveral, Fla. - NASA Deputy Administrator Lori Garver, fourth f...

Cape Canaveral, Fla. - NASA Deputy Administrator Lori Garver, fourth from left, looks over NASA's Mars Science Laboratory (MSL) rover known as Curiosity as it sits in a workstand at the Payload Hazardous Servic... More

Cape Canaveral, Fla. - At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, John Grotzinger, project scientist for NASA's Mars Science Laboratory (MSL) rover known as Curiosity, points out components of the rover to NASA Deputy Administrator Lori Garver, to his right. A United Launch Alliance Atlas V-541 configuration will be used to loft MSL into space. Curiosity’s 10 science instruments are designed to search for evidence on whether Mars has had environments favorable to microbial life, including chemical ingredients for life. The unique rover will use a laser to look inside rocks and release its gasses so that the rover’s spectrometer can analyze and send the data back to Earth. MSL is scheduled to launch from Cape Canaveral Air Force Station in Florida Nov. 25 with a window extending to Dec. 18 and arrival at Mars Aug. 2012. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Jim Grossmann KSC-2011-5064

Cape Canaveral, Fla. - At the Payload Hazardous Servicing Facility at ...

Cape Canaveral, Fla. - At the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, John Grotzinger, project scientist for NASA's Mars Science Laboratory (MSL) rover known as Curiosity... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is attached to the MMRTG integration cart. The cart will be used to install the MMRTG on the Curiosity rover for a fit check. The rover is on an elevated work stand, at right. The MMRTG then will be removed and installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6697

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's M... More

CAPE CANAVERAL, Fla. -- In the airlock of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the protective mesh container enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is lifted from around the MMRTG. The container, known as the "gorilla cage," protects the MMRTG during transport and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6681

CAPE CANAVERAL, Fla. -- In the airlock of the Payload Hazardous Servic...

CAPE CANAVERAL, Fla. -- In the airlock of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the protective mesh container enclosing the multi-mission radioisotope thermo... More

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, a forklift carries the protective mesh container, known as the "gorilla cage," enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission into the airlock of the Payload Hazardous Servicing Facility (PHSF). The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6679

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, a f...

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, a forklift carries the protective mesh container, known as the "gorilla cage," enclosing the multi-mission radioisotope thermoelectric generato... More

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, a forklift carries the protective mesh container, known as the "gorilla cage," enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission toward the MMRTG trailer that will transport it to the Payload Hazardous Servicing Facility (PHSF). The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6672

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Ken...

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, a forklift carries the protective mesh container, known as the "gorilla cage," enclosing the multi-mission rad... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is installed onto the aft of the Curiosity rover for a fit check. In view are the MMRTG's cooling fins which function like the radiator on a car and will reflect any excess heat generated by the MMRTG to prevent interference with the rover's electronics. Next, the MMRTG will be removed and later installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6704

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's M... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory guide a turning fixture onto the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission. The fixture will be used to lift and lower the MMRTG onto the MMRTG integration cart. The cart will be used to install the MMRTG on Curiosity for a fit check. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6686

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory guide a turning... More

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is delivered to the airlock doors of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida inside the MMRTG trailer. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6678

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric ...

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is delivered to the airlock doors of the Payload Hazardous Servicing Faci... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is installed onto the aft of the Curiosity rover for a fit check. In view are the MMRTG's cooling fins which function like the radiator on a car and will reflect any excess heat generated by the MMRTG to prevent interference with the rover's electronics. Next, the MMRTG will be removed and later installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6703

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's M... More

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, a forklift positions the protective mesh container enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission onto the floor of the airlock of the Payload Hazardous Servicing Facility (PHSF). The container, known as the "gorilla cage," protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6680

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, a f...

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, a forklift positions the protective mesh container enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Sc... More

CAPE CANAVERAL, Fla. -- Workers dressed in clean room attire, known as bunny suits, transfer the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on its holding base from the airlock of the Payload Hazardous Servicing Facility (PHSF) into the facility's high bay. In the high bay, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6684

CAPE CANAVERAL, Fla. -- Workers dressed in clean room attire, known as...

CAPE CANAVERAL, Fla. -- Workers dressed in clean room attire, known as bunny suits, transfer the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on i... More

CAPE CANAVERAL, Fla. -- Workers dressed in clean room attire, known as bunny suits, transfer the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on its holding base through the doors of the airlock of the Payload Hazardous Servicing Facility (PHSF) into the facility's high bay. In the high bay, the MMRTG temporarily will be installed on the MSL rover, Curiosity (in the background, at right), for a fit check using the MMRTG integration cart (in the background, at left). The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6685

CAPE CANAVERAL, Fla. -- Workers dressed in clean room attire, known as...

CAPE CANAVERAL, Fla. -- Workers dressed in clean room attire, known as bunny suits, transfer the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on i... More

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, a forklift positions the protective mesh container, known as the "gorilla cage," enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission inside the MMRTG trailer that will transport it to the Payload Hazardous Servicing Facility (PHSF). The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6673

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Ken...

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, a forklift positions the protective mesh container, known as the "gorilla cage," enclosing the multi-mission r... More

CAPE CANAVERAL, Fla. -- Outside the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, a forklift picks up the protective mesh container, known as the "gorilla cage," enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission for its move to the Payload Hazardous Servicing Facility (PHSF). The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6670

CAPE CANAVERAL, Fla. -- Outside the high bay of the RTG storage facili...

CAPE CANAVERAL, Fla. -- Outside the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida, a forklift picks up the protective mesh container, known as the "gorilla cage," enclosing the ... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, a crane lifts the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission from its support base, at left, toward the MMRTG integration cart behind it. The cart will be used to install the MMRTG on the Curiosity rover for a fit check. The rover appears above the heads of the spacecraft technicians, at right. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6690

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, a crane lifts the multi-mission radioisotope thermoelectric generator (MMRTG... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory rotate the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, using the turning fixture to align the MMRTG with the angle of the MMRTG integration cart behind it. The cart will be used to install the MMRTG on the Curiosity rover for a fit check. The rover is on an elevated work stand, at right. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6691

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory rotate the mult... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory transfer the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission onto the aft of the Curiosity rover for a fit check with the aid of the MMRTG integration cart. The MMRTG then will be removed and installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6699

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory transfer the mu... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on the turning fixture is lowered onto the MMRTG integration cart. The cart will be used to install the MMRTG on the Curiosity rover for a fit check. The rover is on an elevated work stand, at right. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6695

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's M... More

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, enclosed in the protective mesh container known as the "gorilla cage," is strapped down inside the MMRTG trailer for transport to the Payload Hazardous Servicing Facility (PHSF). The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6675

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Ken...

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) missi... More

CAPE CANAVERAL, Fla. -- Department of Energy contractor employees roll the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, enclosed in a protective mesh container known as the "gorilla cage," out of the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida for its move to the Payload Hazardous Servicing Facility (PHSF). The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6668

CAPE CANAVERAL, Fla. -- Department of Energy contractor employees roll...

CAPE CANAVERAL, Fla. -- Department of Energy contractor employees roll the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, enclosed in a protective ... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory position the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on the turning fixture above the MMRTG integration cart. The cart will be used to install the MMRTG on the Curiosity rover for a fit check. The rover is on an elevated work stand, at right. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6694

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory position the mu... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory use extension tools to attach the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on the MMRTG integration cart onto the aft of the Curiosity rover for a fit check. The MMRTG then will be removed and installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6701

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory use extension t... More

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric generator (MMRTG) trailer backs toward the airlock doors of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida. The MMRTG for NASA's Mars Science Laboratory (MSL) mission is being transferred into the PHSF, where it will be installed on the MSL rover, Curiosity, for a fit check. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6677

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric ...

CAPE CANAVERAL, Fla. -- The multi-mission radioisotope thermoelectric generator (MMRTG) trailer backs toward the airlock doors of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center i... More

CAPE CANAVERAL, Fla. -- Department of Energy contractor employees roll the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, enclosed in a protective mesh container known as the "gorilla cage," toward a forklift outside the high bay of the RTG storage facility at NASA's Kennedy Space Center in Florida for its move to the Payload Hazardous Servicing Facility (PHSF). The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6669

CAPE CANAVERAL, Fla. -- Department of Energy contractor employees roll...

CAPE CANAVERAL, Fla. -- Department of Energy contractor employees roll the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, enclosed in a protective ... More

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, a plexiglass shield has been installed on the forklift enlisted to move the protective mesh container, known as the "gorilla cage," enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission. The shield minimizes the amount of debris dispersed by the wheels of the forklift that can contact the gorilla cage. The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. The MMRTG is being moved to the Payload Hazardous Servicing Facility (PHSF) where it temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6671

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Ken...

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, a plexiglass shield has been installed on the forklift enlisted to move the protective mesh container, known a... More

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission, enclosed in the protective mesh container, known as the "gorilla cage," is positioned inside the MMRTG trailer that will transport it to the Payload Hazardous Servicing Facility (PHSF). The cage protects the MMRTG and allows any excess heat generated to dissipate into the air. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6674

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Ken...

CAPE CANAVERAL, Fla. -- Outside the RTG storage facility at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) missi... More

CAPE CANAVERAL, Fla. -- In the airlock of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the protective mesh container enclosing the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is lowered to the floor of the airlock beside the MMRTG. The container, known as the "gorilla cage," protects the MMRTG during transport and allows any excess heat generated to dissipate into the air. Next, the airlock will be transitioned into a clean room by purging the air of any particles. In the PHSF, the MMRTG temporarily will be installed on the MSL rover, Curiosity, for a fit check but will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6683

CAPE CANAVERAL, Fla. -- In the airlock of the Payload Hazardous Servic...

CAPE CANAVERAL, Fla. -- In the airlock of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the protective mesh container enclosing the multi-mission radioisotope thermo... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is attached to the MMRTG integration cart. The cart will be used to install the MMRTG on the Curiosity rover for a fit check. The wheels of the rover appear to stick out on either side of the cart. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6696

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's M... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory guide the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on the turning fixture toward the MMRTG integration cart. The cart will be used to install the MMRTG on the Curiosity rover for a fit check. The rover is on an elevated work stand, at right. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6692

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory guide the multi... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory guide the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on the turning fixture toward the MMRTG integration cart. The cart will be used to install the MMRTG on the Curiosity rover for a fit check. The rover is on an elevated work stand, at right. The MMRTG will be installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6693

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory guide the multi... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory transfer the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission onto the aft of the Curiosity rover for a fit check with the aid of the MMRTG integration cart. The MMRTG then will be removed and installed on the rover for launch at the pad. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. Curiosity, MSL's car-sized rover, has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is planned for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Cory Huston KSC-2011-6698

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility (PHSF) at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory transfer the mu... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, a spacecraft technician from NASA's Jet Propulsion Laboratory conducts a visual inspection of the cooling tubes on the exterior of the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission following the MMRTG fit check on the Curiosity rover. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is targeted for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-6713

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, a spacecraft technician from NASA's Jet Propulsion Laboratory conducts a visual ins... More

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission is positioned on a support base with the aid of a turning fixture following the MMRTG fit check on the Curiosity rover. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is targeted for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-6709

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. -- In the high bay of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Sci... More

CAPE CANAVERAL, Fla. -- In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory roll the multi-mission radioisotope thermoelectric generator (MMRTG) for NASA's Mars Science Laboratory (MSL) mission on its support base from the high bay into the airlock following the MMRTG fit check on the Curiosity rover. The MMRTG will generate the power needed for the mission from the natural decay of plutonium-238, a non-weapons-grade form of the radioisotope. Heat given off by this natural decay will provide constant power through the day and night during all seasons. MSL's components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Waste heat from the MMRTG will be circulated throughout the rover system to keep instruments, computers, mechanical devices and communications systems within their operating temperature ranges. Launch of MSL aboard a United Launch Alliance Atlas V rocket is targeted for Nov. 25 from Space Launch Complex 41 on Cape Canaveral Air Force Station. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett KSC-2011-6714

CAPE CANAVERAL, Fla. -- In the Payload Hazardous Servicing Facility at...

CAPE CANAVERAL, Fla. -- In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, spacecraft technicians from NASA's Jet Propulsion Laboratory roll the multi-mission radioisotope th... More

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