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	+ NASA Home + NASA Education Home		+ NASA Home > For Students > NASA Brain Bites Home Print This Email This Why Do Astronauts Practice Underwater? Marco… Polo… You can rest assured that astronauts are not playing around when they’re training in NASA’s Neutral Buoyancy Laboratory. Don’t be a fish out of water, come in and see why astronauts become human submarines. +Quicktime Open Captioned +Quicktime Media high +Quicktime Media low +Windows Media high +Windows Media low Video Intended for Classroom Use Only
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