The crew of the space shuttle Endeavour, from left, commander Scott Kelly, pilot Charles Hobaugh, mission specialists Alvin Drew Jr., and Rick Mastracchio, Canadian Space Agency astronaut Dave Williams and mission specialists Barbara Morgan and Tracy Caldwell pose for photos after a press conference at the Kennedy Space Center in Cape Canaveral, Fla., Wednesday, July 18, 2007. Credit:AP Photo/John Raoux.
