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CAPE CANAVERAL, Fla. – In the Space Station Processing Facility at NASA's Kennedy Space Center, astronauts Terry Virts, left, and Charles Hobaugh familiarize themselves with the operation of the robotic workstation, or RWS, in the International Space Station's Cupola module.  The RWS is provided by the Canadian Space Agency.  The module was delivered by the European Space Agency in 2004 to Kennedy from Alenia Spazio in Turin, Italy.  Cupola will provide unprecedented views of activities outside the station and spectacular views of the Earth.  Crew members working inside the module will have a 360-degree panoramic view.  Cupola has the capability for command and control workstations to be installed to assist in space station remote manipulator system and extra vehicular activities.  Cupola is the final element of the space station core and is scheduled for launch on space shuttle Endeavour's STS-130 mission, targeted for Dec. 10, 2009.  Photo credit: NASA/Cory Huston KSC-08pd2198

CAPE CANAVERAL, Fla. – In the Space Station Processing Facility at NAS...

CAPE CANAVERAL, Fla. – In the Space Station Processing Facility at NASA's Kennedy Space Center, astronauts Terry Virts, left, and Charles Hobaugh familiarize themselves with the operation of the robotic worksta... More

CAPE CANAVERAL, Fla. –  In the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center, workers check the attachments on the ground support equipment for the STS-125 Hubble Servicing Mission as it is transferred to a work stand.  The GSE are carriers, or pallets, that will hold equipment in space shuttle Atlantis’ payload bay.  Under the protective covering of the carrier can be seen the soft capture mechanism. The carriers will be prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the servicing mission.  The three payload carriers or pallets are the Flight Support System, the Super Lightweight Interchangeable Carrier and the Orbital Replacement Unit Carrier.  At the end of July, a fourth and final carrier, the Multi-Use Lightweight Equipment carrier will join the others in the Payload Hazardous Servicing Facility where the Hubble payload is being prepared for launch. Photo credit: NASA/Cory Huston KSC-08pd2010

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, workers check the attachments on the ground support equipment for the STS-125 Hubble Servicing Mission as it i... More

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, STS-134 Mission Specialist Michael Finke practices using a camera he'll be snapping photos with in space. The six STS-134 astronauts are at Kennedy participating in the Crew Equipment Interface Test (CEIT), which gives them an opportunity for hands-on training and familiarization of the payload they'll be delivering to the International Space Station.      Space shuttle Endeavour is targeted to launch on the STS-134 mission Feb. 27, 2011. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Cory Huston KSC-2010-5549

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's...

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, STS-134 Mission Specialist Michael Finke practices using a camera he'll be snapping photos with in space. ... More

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, STS-134 Commander Mark Kelly, left, and Pilot Gregory H. Johnson check out tools and equipment they'll be using in space. The six STS-134 astronauts are at Kennedy participating in the Crew Equipment Interface Test (CEIT), which gives them an opportunity for hands-on training and familiarization of the payload they'll be delivering to the International Space Station.      Space shuttle Endeavour is targeted to launch on the STS-134 mission Feb. 27, 2011. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Cory Huston KSC-2010-5552

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's...

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, STS-134 Commander Mark Kelly, left, and Pilot Gregory H. Johnson check out tools and equipment they'll be ... More

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, the heat shield for the agency's Orion spacecraft arrived aboard the Super Guppy aircraft. The largest of its kind ever built, the heat shield is planned for installation on the Orion crew module in March next year. The Orion spacecraft is scheduled to make its first unpiloted flight test, Exploration Flight Test-1 EFT-1, in September 2014.      The Orion spacecraft is designed to meet requirements for traveling beyond low-Earth orbit. The spacecraft will serve as the exploration vehicle that will carry crews to space, sustain the astronauts during the space travel and provide safe re-entry from deep space. For more information, visit: http://www.nasa.gov/orion Photo credit: NASA/Cory Huston KSC-2013-4238

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA's Kenne...

CAPE CANAVERAL, Fla. – At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, the heat shield for the agency's Orion spacecraft arrived aboard the Super Guppy aircraft. The largest of its ki... More

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, the STS-134 crew checks out the heat shield tiles that protect space shuttles during re-entry. From left, are Mission Specialists Greg Chamitoff and Andrew Feustel, Pilot Gregory H. Johnson, Commander Mark Kelly and Mission Specialist Roberto Vittori of the European Space Agency. The six STS-134 astronauts are at Kennedy participating in the Crew Equipment Interface Test (CEIT), which gives them an opportunity for hands-on training with the tools and equipment they'll use in space and familiarization of the payload they'll be delivering to the International Space Station.    Space shuttle Endeavour is targeted to launch on the STS-134 mission Feb. 27, 2011. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Cory Huston KSC-2010-5539

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's...

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, the STS-134 crew checks out the heat shield tiles that protect space shuttles during re-entry. From left, ... More

CAPE CANAVERAL, Fla. – In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief the media following the scrub of a launch attempt of space shuttle Discovery. From left are briefing moderator Allard Beutel, Mission Management Team Chair Mike Moses and STS-128 Launch Director Pete Nickolenko.  The launch attempt was scrubbed due to a problem with a liquid hydrogen valve in the main propulsion system. Liftoff now is no earlier than 12:22 a.m. EDT on Aug. 28.The 13-day STS-128 mission will deliver more than seven tons of supplies, science racks and equipment, as well as additional environmental hardware to sustain six crew members on the International Space Station. The equipment includes a freezer to store research samples, a new sleeping compartment and the COLBERT treadmill.  The mission is the 128th in the Space Shuttle Program, the 37th flight of Discovery and the 30th station assembly flight.  Photo credit: NASA/Cory Huston KSC-2009-4866

CAPE CANAVERAL, Fla. – In the Press Site auditorium at NASA's Kennedy ...

CAPE CANAVERAL, Fla. – In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief the media following the scrub of a launch attempt of space shuttle Discovery. From left are bri... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad.  Seen here are Mission Specialists Heidemarie Stefanyshyn-Piper and Daniel Burbank, Pilot Chris Ferguson, Mission Specialist Steven MacLean and Commander Brent Jett. MacLean is with the Canadian Space Agency.  Not seen is Mission Specialist Joseph Tanner. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1776

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions abou...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad. Seen here are Mission Specialists Heidemarie Stefanys... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.   Shown here is Mission Specialist Joseph Tanner. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1812

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here is Mission Specialist Joseph Tanner. The mission crew is at KSC for Terminal Countdown D... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew is in the White Room on the orbiter access arm on Launch Pad 39B to get instruction on using the emergency egress system. From left are Commander Brent Jett, Pilot Chris Ferguson, and Mission Specialists Heidemarie Stefanyshyn-Piper, Joseph Tanner, Steven MacLean and Daniel Burbank.  MacLean is with the Canadian Space Agency.  The White Room provides access into the orbiter through the crew access hatch. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1774

KENNEDY SPACE CENTER, FLA. - The STS-115 crew is in the White Room o...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew is in the White Room on the orbiter access arm on Launch Pad 39B to get instruction on using the emergency egress system. From left are Commander Brent Jett, Pilo... More

CAPE CANAVERAL, Fla. –   In the airlock of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center, workers prepare to move the ground support equipment for the STS-125 Hubble Servicing Mission delivered July 16.  The GSE are carriers, or pallets, that will hold equipment in space shuttle Atlantis’ payload bay.  This carrier will be moved to a work stand. The carriers will be prepared for the integration of telescope science instruments, both internal and external replacement components, as well as the flight support equipment to be used by the astronauts during the servicing mission.  The three payload carriers or pallets are the Flight Support System, the Super Lightweight Interchangeable Carrier and the Orbital Replacement Unit Carrier.  At the end of July, a fourth and final carrier, the Multi-Use Lightweight Equipment carrier will join the others in the Payload Hazardous Servicing Facility where the Hubble payload is being prepared for launch. Photo credit: NASA/Cory Huston KSC-08pd2004

CAPE CANAVERAL, Fla. – In the airlock of the Payload Hazardous Servi...

CAPE CANAVERAL, Fla. – In the airlock of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center, workers prepare to move the ground support equipment for the STS-125 Hubble Servicing Mission ... More

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, STS-134 Commander Mark Kelly, left, and Mission Specialist Roberto Vittori with the European Space Agency check out a tool they'll be using in space. The six STS-134 astronauts are at Kennedy participating in the Crew Equipment Interface Test (CEIT), which gives them an opportunity for hands-on training and familiarization of the payload they'll be delivering to the International Space Station.        Space shuttle Endeavour is targeted to launch on the STS-134 mission Feb. 27, 2011. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Cory Huston KSC-2010-5544

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's...

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, STS-134 Commander Mark Kelly, left, and Mission Specialist Roberto Vittori with the European Space Agency ... More

KENNEDY SPACE CENTER, FLA. -  STS-115 Commander Brent Jett is ready to practice driving the M-113 armored personnel carrier. Behind him are seen Mission Specialists Daniel Burbank and Steven MacLean, who represents the Canadian Space Agency. The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Demonstration Test activities such as the M-113 training.  They will also practice emergency egress from the launch pad and take part in a simulated launch countdown.  Liftoff of mission STS-115 aboard Space Shuttle Atlantis is scheduled in a window beginning Aug. 27.   Photo credit: NASA/Cory Huston KSC-06pd1761

KENNEDY SPACE CENTER, FLA. - STS-115 Commander Brent Jett is ready to...

KENNEDY SPACE CENTER, FLA. - STS-115 Commander Brent Jett is ready to practice driving the M-113 armored personnel carrier. Behind him are seen Mission Specialists Daniel Burbank and Steven MacLean, who repres... More

CAPE CANAVERAL, Fla. -- John Glenn and NASA Kennedy Space Center Director Bob Cabana sit in the flight deck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission.       Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1454

CAPE CANAVERAL, Fla. -- John Glenn and NASA Kennedy Space Center Direc...

CAPE CANAVERAL, Fla. -- John Glenn and NASA Kennedy Space Center Director Bob Cabana sit in the flight deck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1. Glenn is at the space center to mar... More

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson stand under space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission. Robinson was the payload commander of STS-95.      Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1449

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astro...

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson stand under space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. ... More

CAPE CANAVERAL, Fla. -- John Glenn signs autographs in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida where space shuttle Discovery is being prepared for public display. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission.    Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1458

CAPE CANAVERAL, Fla. -- John Glenn signs autographs in Orbiter Process...

CAPE CANAVERAL, Fla. -- John Glenn signs autographs in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida where space shuttle Discovery is being prepared for public display. Glenn is ... More

SAN DIEGO, Calif. – NASA Administrator Charlie Bolden, center, talks to Milt Heflin on the USS Anchorage on the first day of Orion Underway Recovery Test 3. Heflin was a former space shuttle flight director and Mission Operations executive with experience as a recovery engineer for several Apollo, Skylab and Apollo-Soyuz Test Project missions. At left is Brandi Dean, NASA Public Affairs Office. The ship will head out to sea, off the coast of San Diego, in search of conditions to support test needs for a full dress rehearsal of recovery operations. NASA, Lockheed Martin and U.S. Navy personnel will conduct tests in the Pacific Ocean to prepare for recovery of the Orion crew module on its return from a deep space mission. The test will allow the teams to demonstrate and evaluate the recovery processes, procedures, hardware and personnel in open waters.    The Ground Systems Development and Operations Program is conducting the underway recovery tests. Orion is the exploration spacecraft designed to carry astronauts to destinations not yet explored by humans, including an asteroid and Mars. It will have emergency abort capability, sustain the crew during space travel and provide safe re-entry from deep space return velocities. The first unpiloted test flight of Orion is scheduled to launch in 2014 atop a United Launch Alliance Delta IV Heavy rocket and in 2018 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Cory Huston KSC-2014-3946

SAN DIEGO, Calif. – NASA Administrator Charlie Bolden, center, talks t...

SAN DIEGO, Calif. – NASA Administrator Charlie Bolden, center, talks to Milt Heflin on the USS Anchorage on the first day of Orion Underway Recovery Test 3. Heflin was a former space shuttle flight director and... More

CAPE CANAVERAL, Fla. -- NASA Kennedy Space Center Director Bob Cabana, right, talks to guests in Orbiter Processing Facility-1 OPF-1 where space shuttle Discovery is being prepared for public display during a 50th anniversary celebration of the first orbital flight of an American. The astronaut who made that first flight, John Glenn, is at the space center to commemorate that achievement. Glenn orbited the Earth three times in the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. He later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission. Also in the photo are Glenn's wife, Annie, NASA astronaut Stephen Robinson, and Bob Sieck, a former shuttle launch director. Robinson was the payload commander of STS-95.      Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1450

CAPE CANAVERAL, Fla. -- NASA Kennedy Space Center Director Bob Cabana,...

CAPE CANAVERAL, Fla. -- NASA Kennedy Space Center Director Bob Cabana, right, talks to guests in Orbiter Processing Facility-1 OPF-1 where space shuttle Discovery is being prepared for public display during a 5... More

CAPE CANAVERAL, Fla. -- John Glenn stands in the middeck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission.     Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1451

CAPE CANAVERAL, Fla. -- John Glenn stands in the middeck of space shut...

CAPE CANAVERAL, Fla. -- John Glenn stands in the middeck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50t... More

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson tour the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard space shuttle Discovery's STS-95 mission. Robinson was the payload commander of STS-95.    Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Photo credit: Cory Huston KSC-2012-1464

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astro...

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson tour the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the... More

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson stand under space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission. Robinson was the payload commander of STS-95.        Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1445

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astro...

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson stand under space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. ... More

CAPE CANAVERAL, Fla. -- NASA Kennedy Space Center Director Bob Cabana sits at the controls in the flight deck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1. At the space center in Florida, Cabana is helping John Glenn mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission.     Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1455

CAPE CANAVERAL, Fla. -- NASA Kennedy Space Center Director Bob Cabana ...

CAPE CANAVERAL, Fla. -- NASA Kennedy Space Center Director Bob Cabana sits at the controls in the flight deck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1. At the space center in Florida, C... More

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson stand beside the wheel of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission. Robinson was the payload commander of STS-95.      Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1448

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astro...

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson stand beside the wheel of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Cente... More

CAPE CANAVERAL, Fla. -- Mercury astronauts John Glenn, second from left and Scott Carpenter look around at the dismantled Complex 14 at Cape Canaveral Air Force Station in Florida. Glenn and Carpenter launched from the pad on Atlas rockets inside Mercury capsules in 1962. The two astronauts, part of the original class of seven astronauts chosen by NASA, were taking part in events celebrating 50 years of Americans in orbit, an era which began with Glenn's Mercury mission MA-6, on Feb. 20, 1962.  Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Photo credit: NASA/ Cory Huston KSC-2012-1467

CAPE CANAVERAL, Fla. -- Mercury astronauts John Glenn, second from lef...

CAPE CANAVERAL, Fla. -- Mercury astronauts John Glenn, second from left and Scott Carpenter look around at the dismantled Complex 14 at Cape Canaveral Air Force Station in Florida. Glenn and Carpenter launched ... More

CAPE CANAVERAL, Fla. -- Mercury astronauts John Glenn, left and Scott Carpenter look around at the dismantled Complex 14 at Cape Canaveral Air Force Station in Florida. Glenn and Carpenter launched from the pad on Atlas rockets inside Mercury capsules in 1962. The two astronauts, part of the original class of seven astronauts chosen by NASA, were taking part in events celebrating 50 years of Americans in orbit, an era which began with Glenn's Mercury mission MA-6, on Feb. 20, 1962.  Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Photo credit: NASA/Cory Huston KSC-2012-1466

CAPE CANAVERAL, Fla. -- Mercury astronauts John Glenn, left and Scott ...

CAPE CANAVERAL, Fla. -- Mercury astronauts John Glenn, left and Scott Carpenter look around at the dismantled Complex 14 at Cape Canaveral Air Force Station in Florida. Glenn and Carpenter launched from the pad... More

CAPE CANAVERAL, Fla. -- John Glenn and NASA astronaut Stephen Robinson stand in the middeck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission. Robinson was the payload commander of STS-95.          Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1452

CAPE CANAVERAL, Fla. -- John Glenn and NASA astronaut Stephen Robinson...

CAPE CANAVERAL, Fla. -- John Glenn and NASA astronaut Stephen Robinson stand in the middeck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is ... More

CAPE CANAVERAL, Fla. -- John Glenn and NASA astronaut Stephen Robinson sit in the flight deck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission. Robinson was the payload commander of STS-95.        Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1453

CAPE CANAVERAL, Fla. -- John Glenn and NASA astronaut Stephen Robinson...

CAPE CANAVERAL, Fla. -- John Glenn and NASA astronaut Stephen Robinson sit in the flight deck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn i... More

CAPE CANAVERAL, Fla. -- John Glenn tours the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard space shuttle Discovery's STS-95 mission.       Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Photo credit: Cory Huston KSC-2012-1463

CAPE CANAVERAL, Fla. -- John Glenn tours the Vehicle Assembly Building...

CAPE CANAVERAL, Fla. -- John Glenn tours the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut ... More

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson stand under space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Glenn is at the space center to mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission. Robinson was the payload commander of STS-95.          Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1444

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astro...

CAPE CANAVERAL, Fla. -- John Glenn and his wife, Annie, and NASA astronaut Stephen Robinson stand under space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. ... More

CAPE CANAVERAL, Fla. -- NASA astronaut Stephen Robinson sits at the controls in the flight deck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Robinson is helping John Glenn mark the 50th anniversary of being the first American astronaut to orbit the Earth inside the NASA Mercury Project's Friendship 7 capsule on Feb. 20, 1962. Glenn later returned to space in October 1998 as a payload specialist aboard Discovery's STS-95 mission. Robinson was the payload commander of STS-95.        Glenn's launch aboard an Atlas rocket took with it the hopes of an entire nation and ushered in a new era of space travel that eventually led to Americans walking on the moon by the end of the 1960s. Glenn soon was followed into orbit by Scott Carpenter, Walter Schirra and Gordon Cooper. Their fellow Mercury astronauts Alan Shepard and Virgil "Gus" Grissom flew earlier suborbital flights. Deke Slayton, a member of NASA's original Mercury 7 astronauts, was grounded by a medical condition until the Apollo-Soyuz Test Project in 1975. Shuttle Discovery currently is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Photo credit: Cory Huston KSC-2012-1456

CAPE CANAVERAL, Fla. -- NASA astronaut Stephen Robinson sits at the co...

CAPE CANAVERAL, Fla. -- NASA astronaut Stephen Robinson sits at the controls in the flight deck of space shuttle Discovery in Orbiter Processing Facility-1 OPF-1 at NASA's Kennedy Space Center in Florida. Robin... More

CAPE CANAVERAL, Fla. – Mike Williams, left, a thermal protection system technician, and Jeremy Schwarz, right, quality assurance technician, both with United Space Alliance, set weights atop a newly installed section of tile on the right wing of space shuttle Endeavour at NASA's Kennedy Space Center in Florida. The weights will hold the section in place while the adhesive hardens beneath.    Ongoing transition and retirement activities are preparing the spacecraft for public display at the California Science Center in Los Angeles. Endeavour flew 25 missions during its 19-year career. Photo credit: NASA/Cory Huston KSC-2012-1943

CAPE CANAVERAL, Fla. – Mike Williams, left, a thermal protection syste...

CAPE CANAVERAL, Fla. – Mike Williams, left, a thermal protection system technician, and Jeremy Schwarz, right, quality assurance technician, both with United Space Alliance, set weights atop a newly installed s... More

KENNEDY SPACE CENTER, FLA.  — At Warrington Middle School in Pensacola, Fla., astronaut Alan Poindexter talks to students.  Poindexter joined Center Director Jim Kennedy on a visit to the school, which has been named one of NASA’s Explorer Schools (NES).   Kennedy is visiting the school to share the vision for space exploration with the next generation.   He is talking with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.  NES establishes a three-year partnership annually between NASA and 50 NASA Explorer School teams, consisting of teachers and education administrators from diverse communities nationwide.  Photo credit: NASA/Cory Huston KSC-06pd0144

KENNEDY SPACE CENTER, FLA. — At Warrington Middle School in Pensacola...

KENNEDY SPACE CENTER, FLA. — At Warrington Middle School in Pensacola, Fla., astronaut Alan Poindexter talks to students. Poindexter joined Center Director Jim Kennedy on a visit to the school, which has been... More

KENNEDY SPACE CENTER, FLA.  — At Warrington Middle School in Pensacola, Fla., astronaut Alan Poindexter explains a science principal to students.  Poindexter joined Center Director Jim Kennedy and others on a visit to the school, which has been named one of NASA’s Explorer Schools (NES).  Kennedy is visiting the school to share the vision for space exploration with the next generation.   He is talking with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.  NES establishes a three-year partnership annually between NASA and 50 NASA Explorer School teams, consisting of teachers and education administrators from diverse communities nationwide.  Photo credit: NASA/Cory Huston KSC-06pd0142

KENNEDY SPACE CENTER, FLA. — At Warrington Middle School in Pensacola...

KENNEDY SPACE CENTER, FLA. — At Warrington Middle School in Pensacola, Fla., astronaut Alan Poindexter explains a science principal to students. Poindexter joined Center Director Jim Kennedy and others on a v... More

KENNEDY SPACE CENTER, FLA.  - Center Director Jim Kennedy (center) and astronaut Roger Crouch (far left) present a NASA Explorer School (NES) banner to the NES team at South Plantation High School in Plantation, Fla.  Kennedy, Crouch and other NASA KSC officials are visiting the school to share the vision for space exploration with the next generation. During the visit, Crouch is talking with students about our destiny as explorers, NASA's stepping stone approach to exploring Earth, the moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.  The Agency's NES program establishes a three-year partnership annually between NASA and 50 NASA Explorer School teams, consisting of teachers and education administrators from diverse communities nationwide.  Photo credit: NASA/Cory Huston KSC-06pd0352

KENNEDY SPACE CENTER, FLA. - Center Director Jim Kennedy (center) and...

KENNEDY SPACE CENTER, FLA. - Center Director Jim Kennedy (center) and astronaut Roger Crouch (far left) present a NASA Explorer School (NES) banner to the NES team at South Plantation High School in Plantation... More

KENNEDY SPACE CENTER, FLA. -  Center Director Jim Kennedy (left) and astronaut Roger Crouch talk to students at South Plantation High School in Plantation, Fla.  Kennedy and Crouch are visiting the NASA Explorer School (NES) to share the vision for space exploration with the next generation. During the visit, Crouch is talking with students about our destiny as explorers, NASA's stepping stone approach to exploring Earth, the moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.  The Agency's NES program establishes a three-year partnership annually between NASA and 50 NASA Explorer School teams, consisting of teachers and education administrators from diverse communities nationwide.  Photo credit: NASA/Cory Huston KSC-06pd0356

KENNEDY SPACE CENTER, FLA. - Center Director Jim Kennedy (left) and a...

KENNEDY SPACE CENTER, FLA. - Center Director Jim Kennedy (left) and astronaut Roger Crouch talk to students at South Plantation High School in Plantation, Fla. Kennedy and Crouch are visiting the NASA Explore... More

KENNEDY SPACE CENTER, FLA. - In NASA's Space Station Processing Facility, the Integrated Cargo Carrier (ICC) is seen inside the payload canister.  The ICC is part of the payload on mission STS-121 to the International Space Station. The carrier holds the mobile transporter reel assembly that the astronauts will replace on the station and a spare pump module. The carrier and its cargo will be placed in Space Shuttle Discovery's payload bay at the pad.  Discovery is scheduled to launch on mission STS-121 from Launch Pad 39B in a window that opens July 1 and extends to July 19.  Photo credit: NASA/Cory Husten KSC-06pd0803

KENNEDY SPACE CENTER, FLA. - In NASA's Space Station Processing Facili...

KENNEDY SPACE CENTER, FLA. - In NASA's Space Station Processing Facility, the Integrated Cargo Carrier (ICC) is seen inside the payload canister. The ICC is part of the payload on mission STS-121 to the Intern... More

KENNEDY SPACE CENTER, FLA. - In NASA's Space Station Processing Facility, an overhead crane has placed the Integrated Cargo Carrier (ICC) inside the payload canister.  The ICC is part of the payload on mission STS-121 to the International Space Station. The carrier holds the mobile transporter reel assembly that the astronauts will replace on the station and a spare pump module. The carrier and its cargo will be placed in Space Shuttle Discovery's payload bay at the pad.  Discovery is scheduled to launch on mission STS-121 from Launch Pad 39B in a window that opens July 1 and extends to July 19.  Photo credit: NASA/Cory Husten KSC-06pd0801

KENNEDY SPACE CENTER, FLA. - In NASA's Space Station Processing Facili...

KENNEDY SPACE CENTER, FLA. - In NASA's Space Station Processing Facility, an overhead crane has placed the Integrated Cargo Carrier (ICC) inside the payload canister. The ICC is part of the payload on mission ... More

KENNEDY SPACE CENTER, FLA. -  Sitting inside the M-113 armored personnel carrier, the STS-115 crew members get instructions from Capt. George Hoggard, who is astronaut rescue team leader.  The astronauts at left are Mission Specialist Heidemarie Stefanyshyn-Piper and Pilot Christopher Ferguson.    At right are Commander Brent Jett and Mission Specialists Joseph Tanner and Daniel Burbank.  Not seen is Mission Specialist Steven MacLean, who represents the Canadian Space Agency.  The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Demonstration Test activities such as the M-113 training.  They will also practice emergency egress from the launch pad and take part in a simulated launch countdown.  Liftoff of mission STS-115 aboard Space Shuttle Atlantis is scheduled in a window beginning Aug. 27.   Photo credit: NASA/Cory Huston KSC-06pd1751

KENNEDY SPACE CENTER, FLA. - Sitting inside the M-113 armored personn...

KENNEDY SPACE CENTER, FLA. - Sitting inside the M-113 armored personnel carrier, the STS-115 crew members get instructions from Capt. George Hoggard, who is astronaut rescue team leader. The astronauts at lef... More

KENNEDY SPACE CENTER, FLA. -  STS-115 Mission Specialist Heidemarie Stefanyshyn-Piper is ready to practice driving the M-113 armored personnel carrier.  Behind her is pilot Christopher Ferguson. The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Demonstration Test activities such as the M-113 training.  They will also practice emergency egress from the launch pad and take part in a simulated launch countdown.  Liftoff of mission STS-115 aboard Space Shuttle Atlantis is scheduled in a window beginning Aug. 27.   Photo credit: NASA/Cory Huston KSC-06pd1756

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialist Heidemarie St...

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialist Heidemarie Stefanyshyn-Piper is ready to practice driving the M-113 armored personnel carrier. Behind her is pilot Christopher Ferguson. The STS-115 cre... More

KENNEDY SPACE CENTER, FLA. -  The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. In the chair is Mission Specialist Daniel Burbank.  The simulation is the culmination of Terminal Countdown Demonstration Test activities at NASA's Kennedy Space Center.  The crew is getting ready for their launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. During the 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and install their cargo, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1767

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are checking th...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. In the chair is Mission Specialist Daniel Burbank. The ... More

KENNEDY SPACE CENTER, FLA. -  The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. Checking his glove is Mission Specialist Steven MacLean, who represents the Canadian Space Agency.  The simulation is the culmination of Terminal Countdown Demonstration Test activities at NASA's Kennedy Space Center.  The crew is getting ready for their launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. During the 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and install their cargo, the Port 3/4 truss segment with its two large solar arrays.   Photo credit: NASA/Cory Huston KSC-06pd1765

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are checking th...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. Checking his glove is Mission Specialist Steven MacLean,... More

KENNEDY SPACE CENTER, FLA. -  The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. Checking her glove is Mission Specialist Heidemarie Stefanyshyn-Piper.  The simulation is the culmination of Terminal Countdown Demonstration Test activities at NASA's Kennedy Space Center.  The crew is getting ready for their launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. During the 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and install their cargo, the Port 3/4 truss segment with its two large solar arrays.   Photo credit: NASA/Cory Huston KSC-06pd1766

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are checking th...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. Checking her glove is Mission Specialist Heidemarie Stef... More

KENNEDY SPACE CENTER, FLA. -  STS-115 Mission Specialist Steven MacLean is ready to practice driving the M-113 armored personnel carrier. MacLean represents the Canadian Space Agency. The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Demonstration Test activities such as the M-113 training.  They will also practice emergency egress from the launch pad and take part in a simulated launch countdown.  Liftoff of mission STS-115 aboard Space Shuttle Atlantis is scheduled in a window beginning Aug. 27.   Photo credit: NASA/Cory Huston KSC-06pd1754

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialist Steven MacLea...

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialist Steven MacLean is ready to practice driving the M-113 armored personnel carrier. MacLean represents the Canadian Space Agency. The STS-115 crew are at NA... More

KENNEDY SPACE CENTER, FLA. -  STS-115 Mission Specialist Daniel Burbank is ready to practice driving the M-113 armored personnel carrier. The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Demonstration Test activities such as the M-113 training.  They will also practice emergency egress from the launch pad and take part in a simulated launch countdown.  Liftoff of mission STS-115 aboard Space Shuttle Atlantis is scheduled in a window beginning Aug. 27.   Photo credit: NASA/Cory Huston KSC-06pd1758

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialist Daniel Burban...

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialist Daniel Burbank is ready to practice driving the M-113 armored personnel carrier. The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdo... More

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members talk about their upcoming driving practice on the M-113 armored personnel carrier with Capt. George Hoggard (back to camera), who is astronaut rescue team leader.  The astronauts seen, left to right, are Mission Specialists Heidemarie Stefanyshyn-Piper, Dan Burbank, Steven MacLean and Joe Tanner, and Pilot Christopher Ferguson.  Not visible is Commander Brent Jett.  MacLean represents the Canadian Space Agency. The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Demonstration Test activities such as the M-113 training.  They will also practice emergency egress from the launch pad and take part in a simulated launch countdown.  Liftoff of mission STS-115 aboard Space Shuttle Atlantis is scheduled in a window beginning Aug. 27.   Photo credit: NASA/Cory Huston KSC-06pd1749

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members talk about their...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members talk about their upcoming driving practice on the M-113 armored personnel carrier with Capt. George Hoggard (back to camera), who is astronaut rescue team l... More

KENNEDY SPACE CENTER, FLA. -  After successfully completing their driving practice on the M-113 armored personnel carrier behind them, the STS-115 crew poses for a photo.  From left are Pilot Christopher Ferguson, Mission Specialists Steven MacLean, Heidemarie Stefanyshyn-Piper, Joseph Tanner and Daniel Burbank, and Commander Brent Jett.  The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Demonstration Test activities such as the M-113 training.  They will also practice emergency egress from the launch pad and take part in a simulated launch countdown.  Liftoff of mission STS-115 aboard Space Shuttle Atlantis is scheduled in a window beginning Aug. 27.   Photo credit: NASA/Cory Huston KSC-06pd1763

KENNEDY SPACE CENTER, FLA. - After successfully completing their driv...

KENNEDY SPACE CENTER, FLA. - After successfully completing their driving practice on the M-113 armored personnel carrier behind them, the STS-115 crew poses for a photo. From left are Pilot Christopher Fergus... More

KENNEDY SPACE CENTER, FLA. -  STS-115 Pilot Christopher Ferguson is ready to practice driving the M-113 armored personnel carrier.  The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Demonstration Test activities such as the M-113 training.  They will also practice emergency egress from the launch pad and take part in a simulated launch countdown.  Liftoff of mission STS-115 aboard Space Shuttle Atlantis is scheduled in a window beginning Aug. 27.   Photo credit: NASA/Cory Huston KSC-06pd1752

KENNEDY SPACE CENTER, FLA. - STS-115 Pilot Christopher Ferguson is re...

KENNEDY SPACE CENTER, FLA. - STS-115 Pilot Christopher Ferguson is ready to practice driving the M-113 armored personnel carrier. The STS-115 crew are at NASA's Kennedy Space Center for Terminal Countdown Dem... More

KENNEDY SPACE CENTER, FLA. -  The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. In the chair is Mission Specialist Joseph Tanner.  The simulation is the culmination of Terminal Countdown Demonstration Test activities at NASA's Kennedy Space Center.  The crew is getting ready for their launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. During the 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and install their cargo, the Port 3/4 truss segment with its two large solar arrays.   Photo credit: NASA/Cory Huston KSC-06pd1764

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are checking th...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. In the chair is Mission Specialist Joseph Tanner. The s... More

KENNEDY SPACE CENTER, FLA. -   STS-115 crew members take another look at an M-113 armored personnel carrier that could be used to move quickly away from the launch pad in the event of an emergency.  From left are Commander Brent Jett, Pilot Chris Ferguson and Mission Specialists Heidemarie Stefanyshyn-Piper and Joseph Tanner.  In the foreground are Mission Specialists Daniel Burbank and Steven MacLean, who is with the Canadian Space Agency. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1792

KENNEDY SPACE CENTER, FLA. - STS-115 crew members take another look ...

KENNEDY SPACE CENTER, FLA. - STS-115 crew members take another look at an M-113 armored personnel carrier that could be used to move quickly away from the launch pad in the event of an emergency. From left a... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew gets instructions on landing the slidewire baskets, used during emergency egress from the launch pad.   Visible from left are Pilot Chris Ferguson, Mission Specialist Joseph Tanner, Commander Brent Jett, Mission Specialist Steven MacLean, who is with the Canadian Space Agency.  Partially hidden behind them are Mission Specialists Heidemarie Stefanyshyn-Piper and Daniel Burbank. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1784

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions on l...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions on landing the slidewire baskets, used during emergency egress from the launch pad. Visible from left are Pilot Chris Ferguson, Mission Specia... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew is in the White Room on the orbiter access arm on Launch Pad 39B to get instruction on using the emergency egress system. From left are Pilot Chris Ferguson, Commander Brent Jett, and Mission Specialists Heidemarie Stefanyshyn-Piper, Joseph Tanner, Steven MacLean and Daniel Burbank.  MacLean is with the Canadian Space Agency. The White Room provides access into the orbiter through the crew access hatch. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1773

KENNEDY SPACE CENTER, FLA. - The STS-115 crew is in the White Room o...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew is in the White Room on the orbiter access arm on Launch Pad 39B to get instruction on using the emergency egress system. From left are Pilot Chris Ferguson, Comm... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew practices exiting from the slidewire basket, used during emergency egress from the launch pad.  Sitting in the basket is Pilot Chris Ferguson. Helping are Commander Brent Jett (left) and Mission Specialist Steven MacLean (right). The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1785

KENNEDY SPACE CENTER, FLA. - The STS-115 crew practices exiting from...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew practices exiting from the slidewire basket, used during emergency egress from the launch pad. Sitting in the basket is Pilot Chris Ferguson. Helping are Command... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad. From left are Commander Brent Jett and Mission Specialists Steven MacLean, Heidemarie Stefanyshyn-Piper and Joseph Tanner.  MacLean is with the Canadian Space Agency.  Not pictured are Pilot Chris Ferguson and Mission Specialist Daniel Burbank.  The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1779

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions abou...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad. From left are Commander Brent Jett and Mission Special... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew responds to questions from the media at a press conference held on Launch Pad 39B.  Seen left to right are Commander Brent Jett, Mission Specialist Steven MacLean, Pilot Chris Ferguson, and Mission Specialist Daniel Burbank.  Crew members not seen are Mission Specialists Heidemarie Stefanyshyn-Piper and Joseph Tanner.  MacLean is with the Canadian Space Agency. The mission crew is at KSC for Terminal Countdown Demonstration Test activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. The TCDT culminates in a simulated launch countdown.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1771

KENNEDY SPACE CENTER, FLA. - The STS-115 crew responds to questions ...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew responds to questions from the media at a press conference held on Launch Pad 39B. Seen left to right are Commander Brent Jett, Mission Specialist Steven MacLean... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew responds to questions from the media at a press conference held on Launch Pad 39B.  Seen left to right are Commander Brent Jett, Mission Specialist Steven MacLean, Pilot Chris Ferguson, and Mission Specialists Daniel Burbank, Heidemarie Stefanyshyn-Piper and Joseph Tanner.  MacLean is with the Canadian Space Agency.  The mission crew is at KSC for Terminal Countdown Demonstration Test activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. The TCDT culminates in a simulated launch countdown.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1772

KENNEDY SPACE CENTER, FLA. - The STS-115 crew responds to questions ...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew responds to questions from the media at a press conference held on Launch Pad 39B. Seen left to right are Commander Brent Jett, Mission Specialist Steven MacLean... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad.   From left are Commander Brent Jett and Mission Specialists Steven MacLean, Heidemarie Stefanyshyn-Piper and Joseph Tanner, and Pilot Chris Ferguson.  MacLean is with the Canadian Space Agency.  Not pictured is Mission Specialist Daniel Burbank. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1780

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions abou...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad. From left are Commander Brent Jett and Mission Speci... More

KENNEDY SPACE CENTER, FLA. -    The STS-115 crew responds to questions from the media at a press conference on Launch Pad 39B.  Seen left to right are Commander Brent Jett, Mission Specialist Steven MacLean, Pilot Chris Ferguson, and Mission Specialists Daniel Burbank, Heidemarie Stefanyshyn-Piper and Joseph Tanner.  MacLean is with the Canadian Space Agency.   The mission crew is at KSC for Terminal Countdown Demonstration Test activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. The TCDT culminates in a simulated launch countdown.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1769

KENNEDY SPACE CENTER, FLA. - The STS-115 crew responds to questions...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew responds to questions from the media at a press conference on Launch Pad 39B. Seen left to right are Commander Brent Jett, Mission Specialist Steven MacLean, Pi... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew practices exiting from the slidewire basket, used during emergency egress from the launch pad. Sitting in the basket are Pilot Chris Ferguson and  Mission Specialist Steven MacLean, who is with the Canadian Space Agency. On the left is Mission Specialist Daniel Burbank.  The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1787

KENNEDY SPACE CENTER, FLA. - The STS-115 crew practices exiting from...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew practices exiting from the slidewire basket, used during emergency egress from the launch pad. Sitting in the basket are Pilot Chris Ferguson and Mission Special... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad.  At center, foreground, is Commander Brent Jett. The others, from left are Mission Specialists Joseph Tanner, gesturing, Steven MacLean,  Daniel Burbank and Heidemarie Stefanyshyn-Piper.  MacLean is with the Canadian Space Agency. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1778

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions abou...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad. At center, foreground, is Commander Brent Jett. The o... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew pauses for a photo during training on Launch Pad 39B.    From left are Mission Commander Brent Jett, Pilot Chris Ferguson, and Mission Specialists Daniel Burbank, Steven MacLean, Heidemarie Stefanyshyn-Piper and Joseph Tanner. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1781

KENNEDY SPACE CENTER, FLA. - The STS-115 crew pauses for a photo dur...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew pauses for a photo during training on Launch Pad 39B. From left are Mission Commander Brent Jett, Pilot Chris Ferguson, and Mission Specialists Daniel Burbank,... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew practices exiting from the slidewire basket, used during emergency egress from the launch pad.   At left is Pilot Chris Ferguson; at right is Mission Specialist Steven MacLean, who is with the Canadian Space Agency. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1788

KENNEDY SPACE CENTER, FLA. - The STS-115 crew practices exiting from...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew practices exiting from the slidewire basket, used during emergency egress from the launch pad. At left is Pilot Chris Ferguson; at right is Mission Specialist S... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad.   In the front, at left, is Pilot Chris Ferguson; at right is Commander Brent Jett.  The other crew members are Mission Specialists Heidemarie Stefanyshyn-Piper, Joseph Tanner and Daniel Burbank. MacLean is with the Canadian Space Agency. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1777

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions abou...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad. In the front, at left, is Pilot Chris Ferguson; at r... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew is in the White Room on the orbiter access arm on Launch Pad 39B to get instruction on using the emergency egress system.  From left are Commander Brent Jett, Pilot Chris Ferguson, and Mission Specialists Heidemarie Stefanyshyn-Piper, Joseph Tanner, Steven MacLean and Daniel Burbank.  MacLean is with the Canadian Space Agency. he White Room provides access into the orbiter through the crew access hatch. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1775

KENNEDY SPACE CENTER, FLA. - The STS-115 crew is in the White Room o...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew is in the White Room on the orbiter access arm on Launch Pad 39B to get instruction on using the emergency egress system. From left are Commander Brent Jett, Pil... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew practices exiting from the slidewire basket, used during emergency egress from the launch pad. Sitting in the basket is Pilot Chris Ferguson. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1786

KENNEDY SPACE CENTER, FLA. - The STS-115 crew practices exiting from...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew practices exiting from the slidewire basket, used during emergency egress from the launch pad. Sitting in the basket is Pilot Chris Ferguson. The mission crew is ... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew gets instructions on landing the slidewire baskets, used during emergency egress from the launch pad. From left are Mission Specialists Joseph Tanner and Heidemarie Stefanyshyn-Piper, Commander Brent Jett, and Mission Specialists Daniel Burbank, Chris Ferguson and Steven MacLean, who is with the Canadian Space Agency. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1782

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions on l...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew gets instructions on landing the slidewire baskets, used during emergency egress from the launch pad. From left are Mission Specialists Joseph Tanner and Heidemar... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew learn about use of the bunker in the event of an emergency at the launch pad. Seen in the photo are, from left, Commander Brent Jett, Mission Specialists Daniel Burbank and Steven MacLean, Pilot Chris Ferguson and Mission Specialist Joseph Tanner.  Not pictured is Mission Specialist Heidemarie Stefanyshyn-Piper.  The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1789

KENNEDY SPACE CENTER, FLA. - The STS-115 crew learn about use of the...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew learn about use of the bunker in the event of an emergency at the launch pad. Seen in the photo are, from left, Commander Brent Jett, Mission Specialists Daniel B... More

KENNEDY SPACE CENTER, FLA. -   STS-115 Pilot Christopher Ferguson, followed by Commander Brent Jett, head for the slidewire baskets on Launch Pad 39B, practicing emergency egress procedures.  The activity follows a simulated launch countdown, part of Terminal Countdown Demonstration Test activities.  The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1834

KENNEDY SPACE CENTER, FLA. - STS-115 Pilot Christopher Ferguson, fol...

KENNEDY SPACE CENTER, FLA. - STS-115 Pilot Christopher Ferguson, followed by Commander Brent Jett, head for the slidewire baskets on Launch Pad 39B, practicing emergency egress procedures. The activity follo... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.  Shown here fixing his glove is Mission Specialist Steven MacLean, who is with the Canadian Space Agency. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1805

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here fixing his glove is Mission Specialist Steven MacLean, who is with the Canadian Space Age... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.   Shown here is Commander Brent Jett. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1807

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here is Commander Brent Jett. The mission crew is at KSC for Terminal Countdown Demonstration... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.   Shown here being helped with his glove is Pilot Christopher Ferguson.  The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1809

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here being helped with his glove is Pilot Christopher Ferguson. The mission crew is at KSC f... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members conclude their emergency egress procedures on Launch Pad 39B.  In the foreground is Mission Specialist Steven MacLean, who is with the Canadian Space Agency.  At right is Mission Specialist Joseph Tanner.  At far left is Mission Specialist Heidemarie Stefanyshyn-Piper. The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1837

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members conclude their...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members conclude their emergency egress procedures on Launch Pad 39B. In the foreground is Mission Specialist Steven MacLean, who is with the Canadian Space Agen... More

KENNEDY SPACE CENTER, FLA. -    The STS-115 crew walks out of the Operations and Checkout Building to head for Launch Pad 39B.  From left are Mission Specialists Heidemarie Stefanyshyn-Piper, Steven MacLean, Joseph Tanner and Daniel Burbank, Pilot Christopher Ferguson and Commander Brent Jett. They are taking part in a simulated launch countdown as part of the preparation for the liftoff of Space Shuttle Atlantis on mission STS-115, scheduled to take place in a window that opens Aug. 27.  The mission crew has been at KSC for Terminal Countdown Demonstration Test (TCDT) activities, which include emergency egress training and the simulation.  During their 11-day mission to the International Space Station, the crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1814

KENNEDY SPACE CENTER, FLA. - The STS-115 crew walks out of the Oper...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew walks out of the Operations and Checkout Building to head for Launch Pad 39B. From left are Mission Specialists Heidemarie Stefanyshyn-Piper, Steven MacLean, Jo... More

KENNEDY SPACE CENTER, FLA. -   STS-115 Mission Specialists Steven MacLean (left) and Joseph Tanner are ready to release the slidewire basket on Launch Pad 39B, practicing emergency egress procedures.  The activity follows a simulated launch countdown, part of Terminal Countdown Demonstration Test activities. The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1833

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialists Steven MacL...

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialists Steven MacLean (left) and Joseph Tanner are ready to release the slidewire basket on Launch Pad 39B, practicing emergency egress procedures. The activ... More

KENNEDY SPACE CENTER, FLA. -   Following a simulated launch countdown and emergency egress practice, the STS-115 crew gathers on the 215-foot level of the fixed service structure on Launch Pad 39B. From left are Pilot Christopher Ferguson, Mission Specialists Heidemarie Stefanyshyn-Piper and Joseph Tanner, Commander Brent Jett, and Mission Specialists Steven MacLean and Daniel Burbank. MacLean is with the Canadian Space Agency. Behind them loom the top of Space Shuttle Atlantis' external tank and one of the solid rocket boosters.  The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1839

KENNEDY SPACE CENTER, FLA. - Following a simulated launch countdown ...

KENNEDY SPACE CENTER, FLA. - Following a simulated launch countdown and emergency egress practice, the STS-115 crew gathers on the 215-foot level of the fixed service structure on Launch Pad 39B. From left ar... More

KENNEDY SPACE CENTER, FLA. -   STS-115 Mission Specialists Heidemarie Stefanyshyn-Piper (front) and Daniel Burbank head for the slidewire baskets on Launch Pad 39B, practicing emergency egress procedures.  The activity follows a simulated launch countdown, part of Terminal Countdown Demonstration Test activities.  The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1829

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialists Heidemarie ...

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialists Heidemarie Stefanyshyn-Piper (front) and Daniel Burbank head for the slidewire baskets on Launch Pad 39B, practicing emergency egress procedures. The ... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.  Shown here is Mission Specialist Heidemarie Stefanyshyn-Piper.  The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1813

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here is Mission Specialist Heidemarie Stefanyshyn-Piper. The mission crew is at KSC for Termi... More

KENNEDY SPACE CENTER, FLA. -    The STS-115 crew members are suiting up for their simulated launch countdown.  Shown here is Mission Specialist Steven MacLean, who is with the Canadian Space Agency.  The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1803

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting u...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here is Mission Specialist Steven MacLean, who is with the Canadian Space Agency. The missio... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.  Shown here being helped with his helmet is Pilot Christopher Ferguson. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1806

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here being helped with his helmet is Pilot Christopher Ferguson. The mission crew is at KSC fo... More

KENNEDY SPACE CENTER, FLA. -   Following a simulated launch countdown and emergency egress practice, the STS-115 crew gathers on the 215-foot level of the fixed service structure on Launch Pad 39B. From left are Mission Specialists Joseph Tanner and Heidemarie Stefanyshyn-Piper, Commander Brent Jett, Pilot Christopher Ferguson, and Mission Specialists Steven MacLean and Daniel Burbank.  MacLean is with the Canadian Space Agency.  Behind them loom the top of Space Shuttle Atlantis' external tank and one of the solid rocket boosters.  The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1838

KENNEDY SPACE CENTER, FLA. - Following a simulated launch countdown ...

KENNEDY SPACE CENTER, FLA. - Following a simulated launch countdown and emergency egress practice, the STS-115 crew gathers on the 215-foot level of the fixed service structure on Launch Pad 39B. From left ar... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.   Shown Shown here is Mission Specialist Daniel Burbank. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1808

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown Shown here is Mission Specialist Daniel Burbank. The mission crew is at KSC for Terminal Coun... More

KENNEDY SPACE CENTER, FLA. -   STS-115 Mission Specialists Daniel Burbank (left) and Heidemarie Stefanyshyn-Piper are ready to release the slidewire basket on Launch Pad 39B, practicing emergency egress procedures.  The activity follows a simulated launch countdown, part of Terminal Countdown Demonstration Test activities. The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1831

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialists Daniel Burb...

KENNEDY SPACE CENTER, FLA. - STS-115 Mission Specialists Daniel Burbank (left) and Heidemarie Stefanyshyn-Piper are ready to release the slidewire basket on Launch Pad 39B, practicing emergency egress procedu... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.   Shown here adjusting his glove is Mission Specialist Joseph Tanner. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1811

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here adjusting his glove is Mission Specialist Joseph Tanner. The mission crew is at KSC for ... More

KENNEDY SPACE CENTER, FLA. -     The STS-115 crew members are suiting up for their simulated launch countdown.  Shown here is Mission Specialist Daniel Burbank.  The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1804

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting ...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here is Mission Specialist Daniel Burbank. The mission crew is at KSC for Terminal Countdow... More

KENNEDY SPACE CENTER, FLA. -   STS-115 Pilot Christopher Ferguson (left) and Commander Brent Jett (right) settle into the slidewire basket on Launch Pad 39B, practicing emergency egress procedures.  The activity follows a simulated launch countdown, part of Terminal Countdown Demonstration Test activities.  The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1835

KENNEDY SPACE CENTER, FLA. - STS-115 Pilot Christopher Ferguson (lef...

KENNEDY SPACE CENTER, FLA. - STS-115 Pilot Christopher Ferguson (left) and Commander Brent Jett (right) settle into the slidewire basket on Launch Pad 39B, practicing emergency egress procedures. The activit... More

KENNEDY SPACE CENTER, FLA. -   The STS-115 crew members are suiting up for their simulated launch countdown.   Shown here is Commander Brent Jett.  The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27.  The TCDT has included emergency egress training as well as the simulation.  During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays.  Photo credit: NASA/Cory Huston KSC-06pd1810

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up...

KENNEDY SPACE CENTER, FLA. - The STS-115 crew members are suiting up for their simulated launch countdown. Shown here is Commander Brent Jett. The mission crew is at KSC for Terminal Countdown Demonstratio... More

KENNEDY SPACE CENTER, FLA. -   Following a simulated launch countdown and emergency egress practice, the STS-115 crew gathers on the 215-foot level of the fixed service structure on Launch Pad 39B. From left are Pilot Christopher Ferguson, Mission Specialists Heidemarie Stefanyshyn-Piper and Joseph Tanner, Commander Brent Jett, and Mission Specialists Steven MacLean and Daniel Burbank. MacLean is with the Canadian Space Agency.  The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1840

KENNEDY SPACE CENTER, FLA. - Following a simulated launch countdown ...

KENNEDY SPACE CENTER, FLA. - Following a simulated launch countdown and emergency egress practice, the STS-115 crew gathers on the 215-foot level of the fixed service structure on Launch Pad 39B. From left ar... More

KENNEDY SPACE CENTER, FLA. -    In the payload changeout room on Launch Pad 39B, STS-115 crew members look over the mission payload one more time before launch. From left are mission specialists Joseph Tanner, Daniel Burbank, Steven MacLean, who represents the Canadian Space Agency, and Heidemarie Stefanyshyn-Piper (standing). The mission crew has been at KSC to take part in Terminal Countdown Demonstration Test activities, which include emergency egress training, a simulated launch countdown and the payload familiarization. The TCDT is a prelaunch preparation for the mission that is scheduled to lift off in a window opening Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston KSC-06pd1851

KENNEDY SPACE CENTER, FLA. - In the payload changeout room on Launc...

KENNEDY SPACE CENTER, FLA. - In the payload changeout room on Launch Pad 39B, STS-115 crew members look over the mission payload one more time before launch. From left are mission specialists Joseph Tanner, ... More

KENNEDY SPACE CENTER, FLA. -  At a post-landing press conference at NASA's Kennedy Space Center, the STS-115 crew answer questions from the media about their mission.  Seated from left are Commander Brent Jett, Pilot Christopher Ferguson, and Mission Specialists Joseph Tanner, Daniel Burbank, Heidemarie Stefanyshyn-Piper and Steven MacLean, who represents the Canadian Space Agency.  During the mission to the International Space Station, astronauts delivered and installed the massive P3/P4 truss, an integral part of the station's backbone, and two sets of solar arrays that will eventually provide one quarter of the station's power. After 11 days, 19 hours and 6 minutes in space, the crew returned to Earth aboard Atlantis at 6:21:30 a.m. EDT.   Photo credit: NASA/Cory Huston KSC-06pd2215

KENNEDY SPACE CENTER, FLA. - At a post-landing press conference at NA...

KENNEDY SPACE CENTER, FLA. - At a post-landing press conference at NASA's Kennedy Space Center, the STS-115 crew answer questions from the media about their mission. Seated from left are Commander Brent Jett,... More

KENNEDY SPACE CENTER, FLA. -  At a post-landing press conference at NASA's Kennedy Space Center, the STS-115 crew members smile at a question from the media.  Seated from left are Commander Brent Jett, Pilot Christopher Ferguson, and Mission Specialists Joseph Tanner, Daniel Burbank, Heidemarie Stefanyshyn-Piper and Steven MacLean, who represents the Canadian Space Agency.  During the mission to the International Space Station, astronauts delivered and installed the massive P3/P4 truss, an integral part of the station's backbone, and two sets of solar arrays that will eventually provide one quarter of the station's power. After 11 days, 19 hours and 6 minutes in space, the crew returned to Earth aboard Atlantis at 6:21:30 a.m. EDT.   Photo credit: NASA/Cory Huston KSC-06pd2216

KENNEDY SPACE CENTER, FLA. - At a post-landing press conference at NA...

KENNEDY SPACE CENTER, FLA. - At a post-landing press conference at NASA's Kennedy Space Center, the STS-115 crew members smile at a question from the media. Seated from left are Commander Brent Jett, Pilot Ch... More

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, workers are on the wing of Endeavour, checking the progress as the payload bay doors close.  The payload will be installed on the launch pad after rollout. The orbiter is designated for mission STS-118, targeted for launch on Aug. 9. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises seven astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew.  Williams represents the Canadian Space Agency.  Photo credit: NASA/Cory Huston KSC-07pd1252

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2...

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, workers are on the wing of Endeavour, checking the progress as the payload bay doors close. The payload will be installed on the launch p... More

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are being closed. The payload will be installed on the launch pad after rollout. The orbiter is designated for mission STS-118, targeted for launch on Aug. 9. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises seven astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew.  Williams represents the Canadian Space Agency.  Photo credit: NASA/Cory Huston KSC-07pd1251

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2...

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are being closed. The payload will be installed on the launch pad after rollout. The orbiter is designated f... More

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are closed. The payload will be installed on the launch pad after rollout.  The orbiter is designated for mission STS-118, targeted for launch on Aug. 9. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises seven astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew.  Williams represents the Canadian Space Agency.  Photo credit: NASA/Cory Huston KSC-07pd1253

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2...

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are closed. The payload will be installed on the launch pad after rollout. The orbiter is designated for mi... More

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are ready to be closed.  The payload will be installed on the launch pad after rollout.  The orbiter is designated for mission STS-118, targeted for launch on Aug. 9. The mission will continue space station construction by delivering a third starboard truss segment, S5, as well as carrying the External Stowage Platform 3. The crew comprises seven astronauts: Commander Scott Kelly, Pilot Charles Hobaugh and Mission Specialists Dr. Dafydd (Dave) Williams, Barbara Morgan, Richard Mastracchio, Tracy Caldwell and Benjamin Drew.  Williams represents the Canadian Space Agency.  Photo credit: NASA/Cory Huston KSC-07pd1250

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2...

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility bay 2, Endeavour's payload bay doors are ready to be closed. The payload will be installed on the launch pad after rollout. The orbiter is desi... More

CAPE CANAVERAL, Fla. --  The STS-122 crew returns to NASA's Kennedy Space Center for a presentation in the Training Auditorium.  Having completed their successful 13-day mission to the International Space Station, (from left) Commander Steve Frick, Pilot Alan Poindexter, and Mission Specialists Leland Melvin, Rex Walheim, Hans Schlegel and Stanley Love share personal stories, photos and videos of their challenging mission.  Photo credit: NASA/Cory Huston KSC-08pd0954

CAPE CANAVERAL, Fla. -- The STS-122 crew returns to NASA's Kennedy Sp...

CAPE CANAVERAL, Fla. -- The STS-122 crew returns to NASA's Kennedy Space Center for a presentation in the Training Auditorium. Having completed their successful 13-day mission to the International Space Stati... More

CAPE CANAVERAL, Fla. --  The STS-122 crew returns to NASA's Kennedy Space Center for a presentation in the Training Auditorium.  Having completed their successful 13-day mission to the International Space Station, (from left) Commander Steve Frick, Pilot Alan Poindexter, and Mission Specialists Leland Melvin, Rex Walheim, Hans Schlegel and Stanley Love share personal stories, photos and videos of their challenging mission.  Photo credit: NASA/Cory Huston KSC-08pd0956

CAPE CANAVERAL, Fla. -- The STS-122 crew returns to NASA's Kennedy Sp...

CAPE CANAVERAL, Fla. -- The STS-122 crew returns to NASA's Kennedy Space Center for a presentation in the Training Auditorium. Having completed their successful 13-day mission to the International Space Stati... More

CAPE CANAVERAL, Fla. --  Following the presentation in the Training Auditorium at NASA's Kennedy Space Center, the STS-122 crew STS-122 crew signs autographs for employees.  At right is Commander Steven Frick.  The crew members shared personal stories, photos and videos of their challenging mission.  Photo credit: NASA/Cory Huston KSC-08pd0958

CAPE CANAVERAL, Fla. -- Following the presentation in the Training Au...

CAPE CANAVERAL, Fla. -- Following the presentation in the Training Auditorium at NASA's Kennedy Space Center, the STS-122 crew STS-122 crew signs autographs for employees. At right is Commander Steven Frick. ... More

CAPE CANAVERAL, Fla. --  Following the presentation in the Training Auditorium at NASA's Kennedy Space Center, the STS-122 crew signs autographs for employees.  At right is Mission Specialist Hans Schlegel; behind him is Mission Specialist Rex Walheim.  The crew members shared personal stories, photos and videos of their challenging mission.  Photo credit: NASA/Cory Huston KSC-08pd0959

CAPE CANAVERAL, Fla. -- Following the presentation in the Training Au...

CAPE CANAVERAL, Fla. -- Following the presentation in the Training Auditorium at NASA's Kennedy Space Center, the STS-122 crew signs autographs for employees. At right is Mission Specialist Hans Schlegel; beh... More

CAPE CANAVERAL, Fla. --  The STS-122 crew returns to NASA's Kennedy Space Center for a presentation in the Training Auditorium.  At center, Mission Specialist Rex Walheim (with microphone) shares a personal story about his experiences.  The other crew members are (from left) Commander Steven Frick, Pilot Alan Poindexter, Mission Specialists Leland Melvin, Hans Schlegel and Stanley Love.  Photo credit: NASA/Cory Huston KSC-08pd0957

CAPE CANAVERAL, Fla. -- The STS-122 crew returns to NASA's Kennedy Sp...

CAPE CANAVERAL, Fla. -- The STS-122 crew returns to NASA's Kennedy Space Center for a presentation in the Training Auditorium. At center, Mission Specialist Rex Walheim (with microphone) shares a personal sto... More

CAPE CANAVERAL, Fla. --  Following the presentation in the Training Auditorium at NASA's Kennedy Space Center, the STS-122 crew members talk to employees and sign autographs.  At left is Mission Specialist Rex Walheim.  The crew shared personal stories, photos and videos of their challenging mission.  Photo credit: NASA/Cory Huston KSC-08pd0962

CAPE CANAVERAL, Fla. -- Following the presentation in the Training Au...

CAPE CANAVERAL, Fla. -- Following the presentation in the Training Auditorium at NASA's Kennedy Space Center, the STS-122 crew members talk to employees and sign autographs. At left is Mission Specialist Rex ... More

CAPE CANAVERAL, Fla. --  Following the presentation in the Training Auditorium at NASA's Kennedy Space Center, the STS-122 crew signs autographs for employees.  At front is Mission Specialist Stan Love.  The crew members shared personal stories, photos and videos of their challenging mission.  Photo credit: NASA/Cory Huston KSC-08pd0961

CAPE CANAVERAL, Fla. -- Following the presentation in the Training Au...

CAPE CANAVERAL, Fla. -- Following the presentation in the Training Auditorium at NASA's Kennedy Space Center, the STS-122 crew signs autographs for employees. At front is Mission Specialist Stan Love. The cr... More

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