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Video: NASA Astronaut Scott Kelly plays ping-pong in space

Astronaut Scott Kelly posted a video of himself playing ping pong with a water ball aboard the International Space Station.

NASA astronaut Scott Kelly, who marked day 300 of a historic year in space on January 21, 2016, shows off another fascinating feature of life in microgravity.

Kelly used two paddles with hydrophobic, or water repellant, features to pass a sphere of water back and forth.

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