I mistook urine leaking from Russian probe for UFO: Astronaut Tim Peake
British astronaut Tim Peake has revealed he thought he saw a UFO in space before he realised it was actually droplets of urine leaking from a Russian probe vehicle. "What was happening was liquid leaking out, crystallising instantly and reflecting the light," he said. In 2015, Peake became the first British astronaut to join the International Space Station.