Photos: Space shuttle Discovery
Discovery stands ready for launch at Pad 39A as the rotating service structure is moved back to expose the orbiter at the Kennedy Space Center in Cape Canaveral, Fla., Wednesday, Feb. 23, 2011.
Discovery stands ready for launch at Pad 39A as the rotating service structure is moved back to expose the orbiter at the Kennedy Space Center in Cape Canaveral, Fla., Wednesday, Feb. 23, 2011.
