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
(Johnson Space Center Director Michael Coats, left, is presented the Atlantis mission flag by Andrew Kohlmeyer, right, after space shuttle Atlantis landed at Kennedy Space Center Thursday, July 21, 2011, in Houston. The landing of Atlantis brings the space shuttle program to an end. (AP Photo/David J. Phillip))
