JSC2009-E-072675 (9 April 2009) --- Astronauts John Grunsfeld (right), Mike Massimino, Michael Good (background) and Andrew Feustel (out of frame), all STS-125 mission specialists, participate in a spacewalk training session in the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Tomas Gonzalez-Torres (left foreground), STS-125 lead spacewalk officer, and United Space Alliance instructor Christy Hansen assisted the crewmembers.
Photographer JAMES BLAIR
Date April 9, 2009