Photos: Atlantis - the last space shuttle
Space Shuttle
Credit: AP
Members of the 103rd Pararescue Squadron practice removing the helmet of an astronaut flight suit during a Pararescue briefing in the build up to the final planned launch of the space shuttle, STS-135, Thursday, July 7, 2011, at Patrick Air Force Base, Fla. This final launch of the Space Shuttle Atlantis marks the end of the program's 30-year history. (AP Photo/John Minchillo)
