NASA's Shuttle Carrier Aircraft or SCA mounted atop taxis down the runway for its ferry flight to California.

At the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, NASA's Shuttle Carrier Aircraft, or SCA, with the space shuttle Endeavour, mounted atop taxis down the runway for its ferry flight to California. The Vehicle Assembly Building can be seen in the background.

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/Kim Shiflett