JSC2011-E-028486 (24 March 2011) --- NASA astronauts Chris Ferguson (left), STS-135 commander; and Doug Hurley, pilot, attired in training versions of their shuttle launch and entry suits, participate in a training session in the Full Fuselage Trainer (FFT) in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Photo credit: NASA or National Aeronautics and Space Administration