How the Universe Works Season 4
A users' guide to the cosmos, from the Big Bang to galaxies, stars, planets and moons: where did it all come from and how does it all fit together? A primer for anyone who has ever looked up at the night sky and wondered.
Watch Trailer
How the Universe Works Season 4 Full Episode Guide
For years, scientists suspected that the oceans came from molecules delivered to Earth from distant stars by asteroids, but a new discovery suggests that their true origins may be more exotic.
The incredible secrets of the moon are revealed; the moon might be responsible for life on Earth.
Scientists attempt to understand how this strange force of magnetism works.
A look inside the supermassive black hole in the center of the Milky Way to discover terrifying secrets about parallel universes, wormholes, and space-time.
Discovering how life on Earth came to be; the possibility that life on Earth come from another planet.
An examination of Venus; and what it may indicate about Earth's future.
Huge magnetic bubbles millions of miles wide; strange invisible matter, and a death star tearing through bands of icy comets, flinging them into violent orbits.
Beneath the hood of your car lies the history of the Universe. The iron in your chassis, the gold in your stereo and the copper in your electronics all owe their existence to violent cosmic events that took place billions of years ago.
Seasons
