JSC2010-E-025725 (23 Feb. 2010) --- Attired in training versions of their shuttle launch and entry suits, NASA astronauts Greg Chamitoff (left) and Michael Fincke, both STS-134 mission specialists, participate in a water survival training session in the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center.
Photographer ROBERT MARKOWITZ
Date February 23, 2010