Overview
At 4.6 billion years old, the Solar System is our solid, secure home in the Universe. But how did it come to be? In this episode we trace the system's birth from a thin cloud of dust and gas. Shocked by a nearby supernova, the pull of gravity and natural rotation spun it into a flat disc from which the Sun and planets coalesced. It all happened in the space of 700 million years, during which the planets jockeyed for position, dodging the brutal bombardment of deadly asteroids and setting into the neat, stable system that we now realize might be a rarity in the universe.
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6 - 1Catastrophes that Changed the Planets October 25, 2011 -
6 - 2Nemesis: The Sun's Evil Twin November 01, 2011 -
6 - 3How the Solar System was Made November 08, 2011 -
6 - 4Crash Landing on Mars November 22, 2011 -
6 - 5Worst Days on Planet Earth November 29, 2011 -
6 - 6UFO: The Real Deal December 13, 2011 -
6 - 7God and the Universe December 20, 2011