NASA astronaut Chris Cassidy, Expedition 35/36 flight engineer, attired in a training version of his Extravehicular Mobility Unit (EMU) spacesuit, is submerged in the waters of the Neutral Buoyancy ... more 
NASA astronaut Chris Cassidy, Expedition 35/36 flight engineer, attired in a training version of his Extravehicular Mobility Unit (EMU) spacesuit, is submerged in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Cen less 
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SPACE.com | Photo By NASA
Thu, Jan 17, 2013 6:36 PM EST