Beginning nearly five billion years ago, there is no sign of our beautiful blue planet in the solar system.(03:01)
A young planet called Theia heads straight for the Earth twenty times faster than a bullet.(02:59)
When big amounts of heat escape from the Earth’s molten core, the activity spawns loads of volcanoes.(03:01)
Life in the oceans is blossoming, from microscopic bacteria to huge sea monsters such as the Anomolacaris.(02:47)
Dinosaurs survived volcanic eruptions and earthquakes. But nothing on the planet is invincible.(03:09)
The Story of Earth promo, a two-hour special on National Geographic Channel.(00:30)
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