Dara and Brian's journey through the night sky continues with 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 and Mark Thompson investigates the problems that are caused by light pollution.
| Title | Episode 2 |
|---|---|
| Genres | Documentary |
| Release Date | 2012-01-17 |
| Episode Runtime | 01 Hours 00 Minutes |
| Season Number | 2 |
| Episode Number | 2 |
| Production Companies | BBC |
