Photos of the Space Shuttle Atlantis mission, and some of those that preceeded it in a 30 year program that ended when the final shuttle touchdown July 21
(Space Shuttle Atlantis lands at the Kennedy Space Center at Cape Canaveral, Fla. Thursday, July 21, 2011. The landing of Atlantis marks the end of NASA's 30 year space shuttle program. (AP Photo/Don Emmert, Pool))
