A space selfie is a selfie that is taken in space; the term has been used to describe self-portraits by astronauts and machines such as rovers. This selfie was taken by Japan Aerospace Exploration Agency astronaut Akihiko Hoshide during a space walk at the International Space Station on 5 September 2012 and went viral after Commander Chris Hadfield posted it to his Twitter feed on 30 September 2013.Photograph: Akihiko Hoshide