Underwater For Outer Space

Training underwater on a life-size mockup of the Space Station is one way astronauts prepare for their mission. It’s as close as it gets to experiencing weightlessness on Earth so spending time in a full spacesuit is used to practise techniques for spacewalks.
Support and training divers are on hand to guide the astronauts during their tasks. In space, the astronauts are aided by mission control and colleague astronauts on the Station. A typical training session lasts up to six hours confined in the spacesuit 12 m (40 ft) underwater.

Credit: European Space Agency

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