Duration: 02:46
Astronaut is the dream job for many children, but what do you need to do to be one, and what exactly do they get up to? Here Tim Peake, the UK's first astronaut, reveals all.
Available since: Fri 13 Jan 2012
Dara O Briain and Professor Brian Cox return to celebrate the wonders of our night sky.
BBC © 2013 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.
