The shuttle carrier aircraft and its Endeavour are poised to be towed into the mate demate device in the foreground.

The shuttle carrier aircraft, or SCA, and its piggyback passenger space shuttle Endeavour are poised to be towed into the mate/demate device, in the foreground. The device will lift the shuttle and put it back on the ground. Visible on Endeavour is the tail cone, which covers and protects the main engines during the ferry flight. After making the three-day trip from California, touchdown at Kennedy was at 2:44 p.m. EST. The SCA is a modified Boeing 747 jetliner. Endeavour landed at Edwards Air Force Base in California Nov. 30 to end mission STS-126. The return to Kennedy began Dec. 8 and took four days after stops across the country for fuel. The last stop was at Barksdale Air Force Base in Shreveport, La. Weather conditions en route and in Florida postponed the landing at Kennedy until Dec. 12. Photo credit: NASA/Kim Shiflett