STS-133 crew members Tim Kopra and Benjamin Drew

JSC2010-E-046457 (31 March 2010) --- NASA astronauts Alvin Drew, attired in a training version of his Extravehicular Mobility Unit (EMU) spacesuit, and Nicole Stott, both STS-133 mission specialists, take a moment for a photo prior to the start of Drew?s spacewalk training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center.