STS-135 crew during AEM (Animal Enclosure Module) training

JSC2011-E-029133 (25 March 2011) --- STS-135 crew members participate in an Animal Enclosure Module (AEM) training session in the Jake Garn Simulation and Training Facility at NASA's Johnson Space Center. Pictured from the right are NASA astronauts Chris Ferguson, commander; Sandy Magnus and Rex Walheim, both mission specialists. STS-135 is planned to be the final mission of the space shuttle program. Photo credit: NASA or National Aeronautics and Space Administration