Safari ya mwisho ya chombo cha anga cha Discovery
Space shuttle Discovery atop a 747 carrier jet flying over the National Mall in Washington, April 17, 2012. (VOA-A. Klein)
Space shuttle Discovery atop a 747 carrier jet flying over the National Mall in Washington, April 17, 2012. (VOA-M. Hishmeh)
Space shuttle Discovery atop a 747 carrier jet flies by the U.S. Capitol, Washington, April 17, 2012. (VOA-A. Klein)
People watch Discovery from scaffolding on the U.S. Capitol, Washington, April 17, 2012. (VOA-A. Klein)
Space shuttle Discovery atop a 747 carrier jet flying over the National Mall in Washington, April 17, 2012. (VOA-M. Hishmeh)
The Space Shuttle Discovery, flies over the Lincoln Memorial in Washington, April 17, 2012. (AP)
The cockpit of space shuttle Discovery is brightly lit as preparations are made for the shuttle's final power down. (NASA)
The starboard wing of the space shuttle Discovery as photographed by the Expedition 13 crew aboard the International Space Station, July 6, 2006. (NASA)
Dwarfed by the station and shuttle, astronaut Soichi Noguchi conducts a spacewalk, August 3, 2005. (NASA)
With its drag chute fully deployed, space shuttle Discovery lands on Kennedy's brightly lighted Shuttle Landing Facility runway 15, completing the 9-day mission, June 6, 1999. (NASA)
From the roof of the Launch Control Center, then U.S. President Bill Clinton and Hillary Clinton track the plume and successful launch of space shuttle Discovery on mission STS-95, October 29, 1998. (NASA)