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
(The STS- 135 crew stand next space shuttle Atlantis shortly after landing at the Kennedy Space Center at Cape Canaveral, Fla. Thursday, July 21, 2011. From right to left: commander Chris Ferguson, pilot Doug Hurley, and mission specialists Sandra Mangusand Rex Walheim. The landing of Atlantis marks the end of NASA's 30 year space shuttle program. (AP Photo/Scott Audette, Pool))