NASA: Training for Expedition 28


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Attired in a training version of his Extravehicular Mobility Unit spacesuit, NASA astronaut Mike Fossum participated in spacewalk training in the waters of the Neutral Buoyancy Laboratory near NASA's Johnson Space Center. Divers in the water assisted Fossum in his rehearsal, which helps prepare him and his fellow astronauts for work on the exterior of the International Space Station. Image Credit: NASA (More at NASA Picture Of The Day)