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Take an up-close look at the Neutral Buoyancy Lab at the Johnson Space XCenter in Houston, Texas. Here, astronauts use underwater training to become familiar with the sensation of working outside of the International Space Station (ISS) as well as testing the limits and abilities of their space suits. The NBL is the largest indoor pool in the world and contains a full size replica of ISS, allowing astronauts to become familiar with the layout of the station and experience working on it in micro-gravity conditions.
Video duration: 2 minutes 56 seconds
Credit: NASA
