INTERNATIONAL SPACE STATION, Feb 25 — Nasa astronaut Scott Kelly decided it was time for monkey business on the space station by dressing up in a gorilla costume to torment his fellow ship mates.

Kelly uploaded a video to his Twitter page yesterday showing an unsuspecting British astronaut, Tim Peake, checking a large white box. A few seconds later a costumed Kelly comes out and proceeds to chase Peake around the space station.

Kelly's brother Mark also uploaded the video onto his Twitter page with the statement “Um, @StationCDRKelly, I thought you said you had things under control up there on @Space_Station? #ApeInSpace.” — Reuters

Japanese astronaut Kimiya Yui, with Nasa astronauts Kjell Lindgren and Scott Kelly as they eat red romaine lettuce grown on board the International Space Station. — AFP pic