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Dr Chris and Dr Xand learn all about space. They find out about gravity and how it formed all the planets and stars in the universe.
Dr Chris and Dr Xand van Tulleken track down the most awesome, incredible things in the universe! This time it's all about space. In this episode they find out all about remarkable gravity and how it formed all the planets and stars in the universe. Their physicist friend, Professor Brian Cox, pops into a huge spinning machine to discover how strong gravity is on other planets. Then they watch something amazing happen when Brian drops out of the sky in a plane to explain why we float in space!
Last on
Mon 24 Nov 2025
09:25
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Credits
| Role | Contributor |
|---|---|
| Presenter | Chris van Tulleken |
| Presenter | Xand van Tulleken |
| Director | Valerie Mellon |
| Participant | Brian Cox |
| Producer | Jane Baxter |
| Producer | Dougie Napier |