The BEST episodes of How the Universe Works season 4
Every episode of How the Universe Works season 4, ranked from best to worst by thousands of votes from fans of the show. The best episodes of 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.
#1 - The First Oceans
Season 4 - Episode 7 - Aired 8/25/2015
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.
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#2 - Secret History of the Moon
Season 4 - Episode 6 - Aired 8/18/2015
Our Moon is stranger than you think, and we reveal its incredible secrets. Can we thank the Moon for life on Earth? What explains the mysterious tunnels beneath its surface? Is a lunar base the key to humanity's future in space?
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#3 - Dawn of Life
Season 4 - Episode 5 - Aired 8/11/2015
Discovering how life on Earth came to be; the possibility that life on Earth come from another planet.
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#4 - Forces of Mass Construction
Season 4 - Episode 8 - Aired 9/1/2015
Scientists attempt to understand how this strange force of magnetism works.
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#5 - Monster Black Hole
Season 4 - Episode 3 - Aired 7/28/2015
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.
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#6 - Edge of the Solar System
Season 4 - Episode 4 - Aired 8/4/2015
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.
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#7 - How the Universe Built Your Car
Season 4 - Episode 1 - Aired 7/14/2015
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.
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#8 - Earth, Venus's Evil Twin
Season 4 - Episode 2 - Aired 7/21/2015
There is a hellish planet in our solar system; covered in thick dense clouds and roasted by colossal temperatures. Incredibly this is a vision of Earth's future. To understand how our world will be destroyed we need to look at Earth's evil twin Venus.
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