What's happening?

How the Universe Works: 2x5

Extreme Orbits - Clockwork and Creation

We owe our existence to the stability of earth’s orbit. But we are the freaks: everywhere else we look we find orbits are chaotic, unstable, and violent. Yet on the very largest scale, orbits are also a creative force, even constructing the fabric of the universe itself.

Aug. 08, 2012