On the KSC Shuttle Landing Facility, the shuttle carrier aircraft, or SCA, with the orbiter Atlantis on its back is towed under the mate/demate device. The orbiter will be detached from the SCA and lowered onto a transporter. Then Atlantis will be towed to the Orbiter Processing Facility to begin processing for its next launch, mission STS-122 in December. Atlantis landed at Edwards Air Force Base in California on June 22 to end mission STS-117. It returned to Kennedy atop the SCA on July 3 after a three-day, cross-country flight due to fuel stops and weather delays. Touchdown was at 8:27 a.m. EDT. Photo credit: NASA/Kim Shiflett