Stream It
Back to Earth 2
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.
Aired: Mar 19, 2015 Genre: DocumentaryCasts: Brian Cox Liz Bonnin Dara Ó BriainDuration: 1h Rating: 0 Country: United Kingdom Production: BBC