BBC - Stargazing Live Series2 (2012) Part2
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 2: Black Holes
The team take a look at black holes, the most mysterious and destructive objects in the whole universe. Liz Bonnin finds out how our galaxy the Milky Way was formed, whilst Mark Thompson investigates the problems that are caused by light pollution.