6/6 A look at the science behind the newest SETI project, and an interview with Patrick Moore.
5/6 Chris Riley finds out about the extraordinary propulsion systems of the future.
4/6 Chris meets the team who discovered most of the known planets outside our Solar System.
3/6 Chris Riley investigates black holes. Kathy Sykes meets a designer of telescope prisms.
2/6 Chris Riley searches for dark matter, and Dr Kathy Sykes talks to Jocelyn Bell-Burnell.
1/6 Kathy Sykes meets the designer of the world's largest telescopes.