JSC2011-E-016861 (11 Feb. 2011) --- NASA astronaut Mark Kelly, STS-134 commander, occupies the commander's station during a simulation exercise in the motion-base shuttle mission simulator in the Jake Garn Mission and Simulation Training Facility at NASA's Johnson Space Center. Photo credit: NASA or National Aeronautics and Space Administration
Photographer BILL STAFFORD
Date February 11, 2011