JSC2011-E-023121 (2 March 2011) --- NASA astronauts Rex Walheim, STS-135 mission specialist; and Doug Hurley (background), pilot, attired in training versions of their shuttle launch and entry suits, participate in a training session in the fixed-base shuttle mission simulator (SMS) in the Jake Garn Simulation and Training Facility at NASA's Johnson Space Center. Photo credit: NASA or National Aeronautics and Space Administration
Photographer BILL STAFFORD
Date March 3, 2011