CAPE CANAVERAL, Fla. – Space shuttle Discovery backs out of the Vehicle Assembly Building, or VAB, at NASA’s Kennedy Space Center in Florida, for its trip to the Shuttle Landing Facility, or SLF. Discovery was in storage in the VAB’s high bay 4 awaiting departure from Kennedy’s Launch Complex 39 area for the final time. At the SLF, Discovery will be hoisted onto a Shuttle Carrier Aircraft, or SCA, with the aid of a mate-demate device. The SCA, a modified Boeing 747 jet airliner, is scheduled to transport Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on permanent public display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett KSC-2012-2054

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KENNEDY SPACE CENTER, FLA. -- Space shuttle Atlantis is revealed on Launch Pad 39A at NASA's Kennedy Space Center after the rotating service structure, or RSS, at left of the pad, has been rolled back. Movement of the RSS began at 7:27 p.m. EST. The RSS provides protected access to the orbiter for crew entry and servicing of payloads at the pad. Rollback of the pad's RSS is one of the milestones in preparation for the launch of mission STS-122, scheduled for 2:45 p.m. EST on Feb. 7. This will be the third launch attempt for Atlantis since December 2007 to carry the Columbus Laboratory to the International Space Station. Beneath the shuttle is the mobile launcher platform which supports the shuttle until liftoff. Photo credit: NASA/Kim Shiflett KSC-08pd0173

CARD 1 OF 2. NASA public domain image. Kennedy space center.

KENNEDY SPACE CENTER, FLA. -- After a nearly 7-hour trip, Space Shuttle Endeavour, atop the mobile launcher platform, is hard down on Launch Pad 39A at 3:02 a.m. First motion out of the Vehicle Assembly Building was at 8:10 p.m. July 10. The components of the shuttle are, first, the orbiter and then the solid rocket boosters flanking the external tank behind it. Seen below the orbiter's wings are the tail masts, which provide several umbilical connections to the orbiter, including a liquid-oxygen line through one and a liquid-hydrogen line through another. Endeavour is scheduled to launch on mission STS-118 on Aug. 7. During the mission, Endeavour will carry into orbit the S5 truss, SPACEHAB module and external stowage platform 3. The mission is the 22nd flight to the International Space Station and will mark the first flight of Mission Specialist Barbara Morgan, the teacher-turned-astronaut whose association with NASA began more than 20 years ago. STS-118 will be the first flight since 2002 for Endeavour, which has undergone extensive modifications, including the addition of safety upgrades already added to orbiters Discovery and Atlantis. Photo credit: NASA/George Shelton KSC-07pd1825

Space Shuttle Discovery is Prepared for Launch

STS-133 DISCOVERY ROLLOUT FROM VAB TO PAD 39A 2010-4732

STS-127 approach to ISS. NASA public domain image colelction.

Kim Shiflett KSC-2012-2054

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CAPE CANAVERAL, Fla. – Space shuttle Discovery backs out of the Vehicle Assembly Building, or VAB, at NASA’s Kennedy Space Center in Florida, for its trip to the Shuttle Landing Facility, or SLF. Discovery was in storage in the VAB’s high bay 4 awaiting departure from Kennedy’s Launch Complex 39 area for the final time. At the SLF, Discovery will be hoisted onto a Shuttle Carrier Aircraft, or SCA, with the aid of a mate-demate device. The SCA, a modified Boeing 747 jet airliner, is scheduled to transport Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on permanent public display in the Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Kim Shiflett

Space Shuttle Program

The Space Shuttle program was the United States government's manned launch vehicle program from 1981 to 2011, administered by NASA and officially beginning in 1972. The Space Shuttle system—composed of an orbiter launched with two reusable solid rocket boosters and a disposable external fuel tank— carried up to eight astronauts and up to 50,000 lb (23,000 kg) of payload into low Earth orbit (LEO). When its mission was complete, the orbiter would re-enter the Earth's atmosphere and lands as a glider. Although the concept had been explored since the late 1960s, the program formally commenced in 1972 and was the focus of NASA's manned operations after the final Apollo and Skylab flights in the mid-1970s. It started with the launch of the first shuttle Columbia on April 12, 1981, on STS-1. and finished with its last mission, STS-135 flown by Atlantis, in July 2011.