David fulfils a dying badger's final wish. Plus electronica.

Also: Sir Patrick Moore gives us a handy guide to the solar system; Justin and Mr Tumble from Something Special tackle Quantum Mechanics; David relives an anxiety dream involving Alexander Armstrong; Professor Brian Cox explains the Wonders of N-Dubz, plus another round of the frequency-based game Everybody Hertz.

This programme contains strong language and content and was first broadcast on BBC Radio 1 on 9 April 2012.