The Universe - Season 6 - Eps 5: Worst Days on Planet Earth
Earth may seem like the most hospitable planet in the solar system. But look again. Startling new discoveries reveal the blue planet has been plagued by more chaos and destruction than scientists once imagined. Stand on the Earth billions of years ago as a primitive planet slams into it. Shiver as our entire globe is frozen over like a gigantic snowball. Feel the heat as mammoth volcanoes scorch the landscape and darken the sky. From a cosmic gamma ray burst frying away the ozone layer to an Everest-size asteroid slamming into the ocean, we'll reveal new information about how these unparalleled events drove life to the brink of total extinction. Out of this continuous devastation, how has our planet--and life--got to where it is today? Are the worst days behind us--or lurking in the distant future?
About The Universe

Title: The Universe
First Air Date: 2007-05-29
Last Air Date: 2015-05-23
Status: Ended
Rating: 7.9/10 (from 170 votes)
Language: EN
Seasons: 10
Total Episodes: 88
Network: History H2
Genres: Documentary
Production Companies: Flight 33 Productions
Synopsis
From the planets to the stars and out to the edge of the unknown, history and science collide in a wondrous yet deadly adventure through space and time.
Cast

David Ackroyd

Erik Thompson