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The Earth's birth
Dr Iain Stewart explains how the Earth developed its inner heat during a time known as the Hadean eon, about 4.5 billion years ago.
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Extreme Earth events
A collection of video clips about extreme events on the ancient Earth.
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Earth
Find out how the Earth works.
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Water attacks mountains
Duration: 02:52
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Volcanoes defeat Snowball Earth
Duration: 04:37
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When continents collide
Duration: 03:00
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The Earth's plates
Duration: 04:19
More clips from Earth: The Power of the Planet
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The edge of space—Atmosphere
Duration: 04:52
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The fluid troposphere—Atmosphere
Duration: 02:26
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Shrinking glaciers—Ice
Duration: 04:18
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The great ocean conveyor—Oceans
Duration: 01:53
