This view of space shuttle Endeavour’s aft section includes the three main engines and was taken by the Expedition 22 crew during the shuttle’s approach vehicle prior to docking with the International Space Station. As part of the survey and part of every mission’s activities, Endeavour performed a back-flip for the rendezvous pitch maneuver (RPM). The image was photographed with a digital still camera, using a 400mm lens at a distance of about 600 feet (180 meters). Image Credit: NASA