A tow vehicle is used to back Discovery out of Orbiter Processing Facility-1 for its move to the Vehicle Assembly Building VAB.

At NASA’s Kennedy Space Center in Florida, a tow vehicle is used to back space shuttle Discovery out of Orbiter Processing Facility-1 for its move to the Vehicle Assembly Building VAB.

The work is part of the Space Shuttle Program’s transition and retirement processing of shuttle Discovery, which is being prepared for display at Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. Discovery will remain in high bay 4 of the VAB until its scheduled transport atop a NASA Shuttle Carrier Aircraft modified 747 jet to Dulles International Airport in Virginia on April 17. Discovery will then be transported to the Smithsonian on April 19. For more information, visit http://www.nasa.gov/shuttle. Photo credit: NASA/Jim Grossmann