JSC2011-E-029115 (25 March 2011) --- NASA astronaut Greg Chamitoff, STS-134 mission specialist, attired in a training version of his Extravehicular Mobility Unit (EMU) spacesuit, awaits the start of a spacewalk training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Photo credit: NASA or National Aeronautics and Space Administration
Photographer James Blair - NASA - JSC
Date March 25, 2011