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.

Last Updated: 4/23/2024Network: Science ChannelStatus: Continuing
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The First Oceans
star
8.18
132 votes

#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.

Watch Now:AmazonApple TV
Secret History of the Moon
star
8.09
143 votes

#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?

Watch Now:AmazonApple TV
Dawn of Life
star
8.04
151 votes

#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.

Watch Now:AmazonApple TV
Monster Black Hole
star
8.02
191 votes

#4 - 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.

Watch Now:AmazonApple TV
Forces of Mass Construction
star
8.01
139 votes

#5 - Forces of Mass Construction

Season 4 - Episode 8 - Aired 9/1/2015

Scientists attempt to understand how this strange force of magnetism works.

Watch Now:AmazonApple TV
Edge of the Solar System
star
7.97
181 votes

#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.

Watch Now:AmazonApple TV
How the Universe Built Your Car
star
7.79
154 votes

#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.

Watch Now:AmazonApple TV
Earth, Venus's Evil Twin
star
7.53
158 votes

#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.

Watch Now:Apple TV