Extreme Earth

A massive asteroid impact

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)

Introduction

A massive asteroid impact Extreme Earth

TV clips (9)

Subjects in this collection