Heavy bombardment

3.9 billion years ago, countless asteroids reined havoc across the planet.

31 May 2019

2 minutes

This clip is from

The Planets—Series 1, The Two Sisters - Earth and Mars

Secrets of the Solar System: Searching for water
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Mars Curiosity and the '7 minutes of terror'
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Secrets of the Solar System: Chasing comets—Series 1, Into the Darkness: Ice Worlds
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Secrets of the Solar System: Discovering moons—Series 1, Life Beyond the Sun: Saturn
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Sputnik Planitia—Series 1, Into the Darkness: Ice Worlds
Duration: 02:09
Triton finds a new home—Series 1, Into the Darkness: Ice Worlds
Duration: 01:09