JSC2008-E-031816 (2 April 2008) --- Astronauts John M. Grunsfeld (right), Michael J. Massimino, Andrew J. Feustel and Michael T. Good, all STS-125 mission specialists, participate in an extravehicular activity (EVA) hardware training session in the Space Vehicle Mockup Facility at NASA's Johnson Space Center. Tomas Gonzalez-Torres (left) assisted the crewmembers.
Photographer Blair