BBC - Stargazing Live Series2 (2012) Part 3

Live from Jodrell Bank observatory Dara O Briain and Professor Brian Cox celebrate the wonder of the night sky. Also includes the 29 minute Back to Earth appended to each episode.

Part 3: Aliens

Dara and Brian's journey through the night sky concludes with a look at aliens, extra terrestrial life and the hunt for new worlds far outside our solar system. They also find out if they've been successful in their quest to find their own Stargazing planet. Meanwhile, Mark Thompson attempts to tackle light pollution by getting the entire population of a small town to switch off all of their lights.

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