Space shuttle Discovery launches on final scheduled mission
KENNEDY SPACE CENTER, Fla. -- Space shuttle Discovery lifts off for the last time from Launch Pad 39A at 4:53 p.m. Thursday, Feb. 24, 2011. "This is a historic flight, with one of the last Air Force shuttle crews," said Brig. Gen. Ed Wilson, 45th Space Wing commander, Launch Decision Authority for STS-133. "The 45th Space Wing is pleased to have participated with NASA and our mission partners on a safe, successful launch. Congratulations to the team for another successful mission supporting our nation's human space program." (U.S. Air Force photo/Brad Swezey)