Space Shuttle Discovery Landing

NASA Deputy Administrator Lori Garver, at podium, speaks to those in attendance at Apron W after the 747 Shuttle Carrier Aircraft (SCA) with space shuttle Discovery mounted on top rolled to a halt at Washington Dulles International Airport, Tuesday, April 17, 2012 in Sterling, Va. Discovery, the first orbiter retired from NASA’s shuttle fleet, completed 39 missions, spent 365 days in space, orbited the Earth 5,830 times, and traveled 148,221,675 miles. NASA will transfer Discovery to the National Air and Space Museum to begin its new mission to commemorate past achievements in space and to educate and inspire future generations of explorers. Photo Credit: (NASA/Smithsonian Institution/Dane Penland)