Photos: Shuttle Discovery's last flight
Space Shuttle
Credit: AP
Space shuttle Discovery stands ready for launch at Pad 39A after the rotating service structure was moved back to expose the orbiter at the Kennedy Space Center in Cape Canaveral, Fla., Wednesday, Feb. 23, 2011.(AP Photo/John Raoux)
![Space shuttle Discovery ready for voyage to museum [PHOTOS]](http://media.azfamily.com/images/96*53/SHUTTLE-BKGD.jpg "Space shuttle Discovery ready for voyage to museum [PHOTOS]")
