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June 1, 2011
Astronaut Ronald M. Sega, center, shares the airlock of the Space Shuttle Atlantis with the two assigned space walkers for STS-76 - astronauts Linda M. Godwin and Michael R. (Rich) Clifford. Sega, the payload commander, assisted the two mission specialists in preparing for the first ever Extravehicular Activity (EVA) to take place while the Space Shuttle was docked with Russia's Mir Space Station.