The astronauts of space shuttle Endeavour — (from left) Navy Capt. Mark Kelly, the mission commander; Gregory Chamitoff; Drew Feustel; Roberto Vittori, an Italian with the European Space Agency; Air Force Col. Mike Fincke; and retired Air Force Col. Greg Johnson, the pilot — gather for a photo after arriving at the Kennedy Space Center in Cape Canaveral, Fla., on Thursday, May 12, 2011. (AP Photo/John Raoux)
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