Not only using instruments, cooking, gardening in the universe, astronauts on the International Space Station (ISS) are also entertained by playing table tennis with water balls.
Astronaut Scott Kelly is playing waterball on ISS.(Snapshot from video).
In the video posted on social networking site Twitter on January 22, astronaut Scott Kelly, who has just spent a year on the ISS station, uses two water-proof table tennis balls to bounce and move back and forth. .
According to Popular Science, waterproof materials make liquid water unable to stick to the surface, making surfaces cleaner. This is a useful property in places like hospitals or in the universe.
