Discover extreme events in the Earth's history that dwarf anything witnessed by humans - monster volcanoes, huge meteor impacts and epic ice ages.
The videos in this collection cover some of the most dramatic events in the Earth's history such as the time when nearly all the dry land on the planet joined together to form a supercontinent called Pangaea and a series of volcanic eruptions so powerful they covered hundreds of thousands of square kilometres of Siberia in molten lava.
Image: Artist's impression of a 500-km-diameter asteroid striking the early Earth (credit: Don Davis/NASA)
The early Solar System was a shooting gallery.
Professor Brian Cox explains how the orbiting gas giants may have caused an enormous asteroid and comet bombardment in the inner Solar System 3.6 billion years ago. Earth and the other planets were peppered by asteroids and comets.
Evidence of the world's biggest ever eruption lies in the Siberian Traps.
The Siberian Traps are the remnants of huge volcanic eruptions - flood basalt eruptions - that can last for millions of years and may have contributed to the devastating Permian mass extinction. This programme was first shown in 2002.
Our planet develops its inner heat.
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.
Over 200 million years ago, the continents were joined together.
Dr Iain Stewart explains how the Earth's moving tectonic plates resulted in a supercontinent called Pangaea.
Volcanoes may have saved an ice-bound Earth.
Dr Iain Stewart describes Snowball Earth, a period of dramatic cooling that may have started 700 million years ago. He explains how the carbon dioxide from volcanoes may have rescued our planet from an icy fate.