Astronauts on board the International Space Station are filmed performing tricks in microgravity. One astronaut is cheered on by colleagues as he tries to walk a tightrope and another does repeated somersaults. The tricks which include throwing fruits and balls at each other were suggested by psychologists for humans spending long periods of time as they orbit soil. The video was filmed in 2014 but has only just been released
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Source: theguardian.com