NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
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Space Shuttle final flight. STS-135 commander Chris Ferguson, pilot Doug Hurley, and mission specialists Rex Walheim and Sandy Magnus leaving the Operations and Checkout building to board the Astrovan that will take them to launchpad 39A at NASA's Kennedy Space Center, USA, for the space shuttle Atlantis' final mission (STS-135), and the final flight of the Space Shuttle Program. Photographed on 8th July 2011.
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