The Ultimate Mars ChallengeJanuary 5, 2014

NASA scientists believe, that far from being dead, Mars holds untold potential. Nearly half a century of Mars exploration has yielded tantalising clues that Mars may once have harboured life - and may harbour it still. The extraordinary landing of a revolutionary rover named Curiosity in August 2012, means NASA has wheels down on the planet once again, in the form of the most sophisticated robot ever to travel the Mars surface. Will NASA's bold mission and this marvel of technology answer some of our biggest questions and usher in a new golden age of exploration? (From the US) (Documentary) (Rpt) G CC

The Ultimate Mars Challenge was broadcast on SBS ONE at Sunday 5 January 2014, 07:30.