Main content
Back to Earth 2
Episode 4 of 8
With the solar eclipse just hours away, Dara O Briain, Brian Cox and special guest experts are back at Jodrell Bank to answer viewers' questions. Apollo 11 astronaut Buzz Aldrin is on hand to explain why he believes humans must walk on the surface of Mars.
Last on
Thu 19 Mar 2015
23:20
成人快手 Two Northern Ireland
More episodes
Previous
Join our photo group
Share images, inspiration and tips with fellow photographers
Follow us on Twitter
Get the latest behind-the-scenes news, photos and videos