New series. Professor Brian Cox and Dara O Briain chat to British astronaut Tim Peake on the international space station. Liz Bonnin reports from the European Astronaut Centre in Cologne, where John Bishop tries out the training program. Scientist Carly Howett guides viewers through a close-up look at Pluto and Professor Lucie Green offers tips on spotting the space station in the night sky. Stargazing: Back to Earth follws at 10pm, as Brian and Dara are joined by NASA’s Carly Howett, who discusses New Horizons’ mission to Pluto.