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Mission STS-133 space walk. NASA astronaut Alvin Drew moving through the Quest airlock on the International Space Station (ISS) on 28 February 2011. During this extra-vehicular activity (EVA), Drew and his colleague Steve Bowen carried out various construction and maintenance tasks on and around the ISS. The duration of the space walk was just over 6.5 hours. It was performed as part of mission STS-133, flown by the Space Shuttle Discovery from 24 February to 9 March 2011.
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