Behind the Scenes with the Atlantis Crew

Photographer Smiley N. Pool documents the four astronauts who will ride the last space shuttle as they get ready for their historic mission
Smiley N. Pool / Houston Chronicle / AP

Simulation
This equipment helps astronaut Rex Walheim, develop skills for a space walk. The photo was taken in the Virtual Reality Laboratory at the Johnson Space Center in Houston, May 13, 2011.

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