Brian Cox
Media playback is unsupported on your device
Video

Brian Cox on discovery of planet Kepler 22-b

TV scientist Prof Brian Cox told Radio 5 live's Richard Bacon about the significance of discovering the Earth-like planet.

Nasa confirmed the existence of Kepler 22-b, which is 600 light years away and has a surface temperature of 22C (71.6F).

For other 5 live highlights, please visit the best bits page.

Richard Bacon broadcasts weekdays 1400 to 1600 on Radio 5 live.

  • 06 Dec 2011
Go to next video: Earth-like planet is confirmed