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The crew of Atlantis (STS-135)–the last to fly in the 30-year Space Shuttle Program–greet a crowd of NASA and Shuttle Program contractor employees at a "wheels stop" event during the Atlantis rollback from the landing strip. In this picture (L-to-R) Commander Chris Furgeson, mission specialist Sandy Mangus, pilot Doug Hurley, and mission specialist Rex Walheim look back at the crowd as they leave the podium at the wheels stop event.