The space shuttle Endeavour mounted atop NASA's Shuttle Carrier Aircraft or SCA is ready to roll back from the device.

At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, the space shuttle Endeavour, mounted atop NASA's Shuttle Carrier Aircraft, or SCA, is ready to roll back from the mate-demate device.

The SCA, a modified 747 jetliner, will fly Endeavour to Los Angeles where it will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era. For more information on the shuttles' transition and retirement, visit http://www.nasa.gov/transition. Photo credit: NASA/ Tim Jacobs