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JSC2002-01452 --- The Neutral Buoyancy Lab, or NBL, is a vital training ground for spacewalking astronauts. In this photo, a crew of technicians prepares two astronauts for their descent into the pool. They are standing on a platform that will be lifted by a crane, which will lift them up and move them slowly over the side of the pool and into the water. The astronauts train in the pool for up to seven hours at a time, using full-sized mockups of International Space Station components to practice for the demanding jobs they will perform in space. The NBL is at the Sonny Carter Training Center near Johnson Space Center in Houston, Texas.
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