British European Space Agency astronaut Tim Peake (L) and National Aeronautics and Space Administration (NASA) astronaut Tim Kopra share their experience in space during a tour in Edinburgh, Scotland, Britain, Oct. 17, 2016. Freshly back from a six-month-long mission on board the International Space Station, Peake and Kopra shared their experience and the scientific experiments in space in the tour which already took Peake to Cardiff, Leicester, Manchester and Glasgow before Edinburgh. (Xinhua/Guo Chunju)
