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June 3, 2011
Astronaut Mark C. Lee, STS-82 payload commander training for extravehicular activity (EVA) involved with the servicing of the Hubble Space Telescope (HST), prepares to enter a water tank at the Johnson Space Center (JSC). Moments later, Lee was neutrally buoyant, rehearsing some of the HST servicing chores with a crewmate.

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