Astronaut John M. Grunsfeld, STS-125 mission specialist, participates in an extravehicular activity (EVA) hardware training session in the Space Vehicle Mockup Facility at NASA's Johnson Space Center.
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Johnson Space Center
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NASA
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Astronaut John M. Grunsfeld, STS-125 mission specialist, participates in an extravehicular activity (EVA) hardware training session in the Space Vehicle Mockup Facility at NASA's Johnson Space Center.