The Shuttle Carrier Aircraft or SCA with space shuttle Discovery secured to deliver Discovery to its new home.

In the early morning hours at NASA Kennedy Space Center’s Shuttle Landing Facility in Florida, the Shuttle Carrier Aircraft, or SCA, with space shuttle Discovery secured atop, taxies down the runway for a takeoff at 7 a.m. EDT to deliver Discovery to its new home.

The aircraft, known as an SCA, is a Boeing 747 jet, originally manufactured for commercial use, which was modified by NASA to transport the shuttles between destinations on Earth. This SCA, designated NASA 905, is assigned to the remaining ferry missions, delivering the shuttles to their permanent public display sites. NASA 905 is scheduled to ferry Discovery to the Washington Dulles International Airport in Virginia on April 17, after which the shuttle will be placed on display in the Smithsonian’s National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Va. For more information on the SCA, visit http://www.nasa.gov/centers/dryden/news/FactSheets/FS-013-DFRC.html. For more information on shuttle transition and retirement activities, visit http://www.nasa.gov/transition. Photo credit: NASA/Glenn Benson