KSC-2011-4843

CAPE CANAVERAL, Fla. -- During simulated pad emergency exit training on Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-135 Mission Specialists Sandy Magnus (left) and Rex Walheim position themselves in a slidewire basket that would take them to a safe bunker below the pad in the unlikely event of an emergency. The exercise is part of the Terminal Countdown Demonstration Test (TCDT) and related training. Atlantis and its crew are targeted to lift off July 8, taking with them the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett