Space shuttle Discovery lands at final home
Space Shuttle Discovery
Credit: Getty Images
CHANTILLY, VA - APRIL 17: People watch a fly-over of Space Shuttle Discovery, mounted atop a 747 shuttle carrier aircraft, at Washington Dulles International Airport during the final trip to its retirement place April 17, 2012 in Chantilly, Virginia. The longest-serving orbiter in the space shuttle fleet was flown from Kennedy Space Center in Florida to the Washington, DC, area to be transferred to the Smithsonian National Air and Space Museum and will be placed on display in the museum's Steven F. Udvar-Hazy Center. (Photo by Alex Wong/Getty Images)
