Extras

Science Trek

Asteroids & Comets: On Location

How do you pick up a rock off an asteroid? It’s not easy.

Clip: Special | 4m 5s

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Science Trek

Asteroids & Comets Video Short

Find out more about asteroids and comets in this Science Trek video short.

Clip: Special | 5m 18s

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Science Trek

The Web Show: Asteroids and Comets

Did asteroids and comets bring water to Earth? Find out on this Science Trek:The Web Show.

Clip: Special | 6m 4s

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