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Back to Earth 1
Episode 2 of 6
Brian, Dara and their guests return for an extra half hour of chat, debate and audience participation celebrating all things astronomical.
Last on
Tue 8 Jan 2013
21:00
91热爆 HD & 91热爆 Two
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Replay Tuesday's chat for facts, photos and your questions answered by experts.
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Your help is needed to explore Mars like never before for the latest Zooniverse project.
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Why is Mars so hostile?
Like Earth it's a rocky planet with polar ice caps and seasons, so why does the Red Planet seem so lifeless?
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Credits
| Role | Contributor |
|---|---|
| Presenter | Brian Cox |
| Presenter | Dara O Briain |
| Series Editor | Alan Holland |
| Executive Producer | Helen Thomas |
Broadcast
- Tue 8 Jan 2013 21:0091热爆 HD & 91热爆 Two
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