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The Best Episodes of How the Universe Works

Every episode of How the Universe Works ranked from best to worst. Let's dive into the Best Episodes of How the Universe Works!

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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

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Episode Rankings

  1. #1 Fan Favorite
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    How the Universe Works Season 6 Episode 5 - Uranus & Neptune: Rise of the Ice Giants
    9.0/10(1 votes)

    #1 - Uranus & Neptune: Rise of the Ice Giants

    S6:E5

    Uranus and Neptune are mysterious, icy worlds at the edge of our solar system, and new discoveries reveal that these strange planets might have helped start life on Earth.

    Director:Unknown
    Writer:Unknown

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  2. How the Universe Works Season 5 Episode 4 - Secret History of Pluto
    8.5/10(2 votes)

    #2 - Secret History of Pluto

    S5:E4

    The first close-up images of Pluto revealed unimaginable secrets of this mysterious frozen world. Now, scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface, and whether this underground ocean could harbor life.

    Director:Unknown
    Writer:Unknown

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  3. How the Universe Works Season 5 Episode 2 - Mystery of Planet 9
    8.0/10(1 votes)

    #3 - Mystery of Planet 9

    S5:E2

    Scientists have discovered a mysterious ninth planet on the very edge of our solar system. Ten times the size of Earth, this strange world could have moons with extraterrestrial life.

    Director:Unknown
    Writer:Unknown

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  4. How the Universe Works Season 5 Episode 6 - The Universe's Deadliest
    8.0/10(1 votes)

    #4 - The Universe's Deadliest

    S5:E6

    The universe is a dangerous place, and we explore the deadliest spots in the cosmos. Between earth and the edge of the universe, there are a million ways to die, and our crash test dummy is on a mission to reveal the worst.

    Director:Unknown
    Writer:Unknown

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  5. How the Universe Works Season 5 Episode 1 - Most Amazing Discoveries
    0.0/10(0 votes)

    #5 - Most Amazing Discoveries

    S5:E1

    From the furthest reaches of space to our own cosmic backyard, we count down the discoveries that changed everything we know about our universe.

    Director:Unknown
    Writer:Unknown

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  6. How the Universe Works Season 5 Episode 3 - Black Holes: The Secret Origin
    0.0/10(0 votes)

    #6 - Black Holes: The Secret Origin

    S5:E3

    Recent discoveries could explain how supermassive black holes grow so big, one of the universe's most mysterious questions. Neither dark matter nor cannibalism can fully explain these monsters, but the latest science might finally provide an answer.

    Director:Unknown
    Writer:Unknown

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    The 20 WORST Episodes of How the Universe Works

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  7. How the Universe Works Season 5 Episode 5 - Stars That Kill
    0.0/10(0 votes)

    #7 - Stars That Kill

    S5:E5

    The universe is home to real-life Death Stars that could destroy planet Earth. The latest science reveals the terrifying secrets of NASA's six deadliest: vampire stars, supernovas that can vaporize a planet, and unpredictable stars gone rogue.

    Director:Unknown
    Writer:Unknown

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  8. How the Universe Works Season 5 Episode 7 - Life and Death on the Red Planet
    0.0/10(0 votes)

    #8 - Life and Death on the Red Planet

    S5:E7

    Life once existed on Mars, but a series of devastating mass extinctions have made present-day life nearly impossible. The latest science shows how Martian life keeps bouncing back as it transforms from a watery world like Earth into a desert planet.

    Director:Unknown
    Writer:Unknown

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  9. How the Universe Works Season 5 Episode 8 - The Dark Matter Enigma
    0.0/10(0 votes)

    #9 - The Dark Matter Enigma

    S5:E8

    Dark matter is the biggest mystery of the cosmos. Scientists know that it has been vital to our universe since its birth, and new discoveries reveal that it could create black holes, cause mass extinctions, and might even shape life on Earth itself.

    Director:Unknown
    Writer:Unknown

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  10. How the Universe Works Season 5 Episode 9 - Strangest Alien Worlds
    0.0/10(0 votes)

    #10 - Strangest Alien Worlds

    S5:E9

    Discoveries of new planets have revealed countless worlds much stranger than Earth. Some of these worlds don't have stars, others are made out of diamonds. Will we ever find a planet like Earth, or are these distant worlds stranger than fiction?

    Director:Unknown
    Writer:Unknown

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  11. How the Universe Works Season 6 Episode 1 - Are Black Holes Real?
    0.0/10(0 votes)

    #11 - Are Black Holes Real?

    S6:E1

    New discoveries are challenging everything we know about black holes, and astronomers are beginning to question if they even exist. The latest science tries to explain how they work and what they look like, despite the fact we've never actually seen one.

    Director:Unknown
    Writer:Unknown

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  12. How the Universe Works Season 6 Episode 2 - Twin Suns: The Alien Mysteries
    0.0/10(0 votes)

    #12 - Twin Suns: The Alien Mysteries

    S6:E2

    Planets that orbit two suns instead of one might be deadly hell worlds, but new discoveries reveal that sci-fi star systems with binary stars might be optimal places for alien life.

    Director:Unknown
    Writer:Unknown

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  13. How the Universe Works Season 6 Episode 3 - Dark History of the Solar System
    0.0/10(0 votes)

    #13 - Dark History of the Solar System

    S6:E3

    Our solar system hides a dark and violent past, and new discoveries reveal that Earth and the planets were formed from the destruction of strange alien worlds that came before us.

    Director:Unknown
    Writer:Unknown

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  14. How the Universe Works Season 6 Episode 4 - Death of the Milky Way
    0.0/10(0 votes)

    #14 - Death of the Milky Way

    S6:E4

    The Milky Way is dying, and using the latest science and discoveries, experts are investigating what's killing it.

    Director:Unknown
    Writer:Unknown

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  15. How the Universe Works Season 6 Episode 6 - Secret History of Mercury
    0.0/10(0 votes)

    #15 - Secret History of Mercury

    S6:E6

    Mercury is a deadly world, facing attacks from the Sun, comets, and other planets, and even though it's the smallest planet in our solar system, it has a dangerous secret a dangerous secret that might one day threaten life on Earth.

    Director:Unknown
    Writer:Unknown

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  16. How the Universe Works Season 6 Episode 7 - The Quasar Enigma
    0.0/10(0 votes)

    #16 - The Quasar Enigma

    S6:E7

    Quasars are the brightest and most powerful objects in our universe, and though they have shaped the cosmos, they might ultimately destroy everything that exists.

    Director:Unknown
    Writer:Unknown

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  17. How the Universe Works Season 6 Episode 8 - Strange Lives of Dwarf Planets
    0.0/10(0 votes)

    #17 - Strange Lives of Dwarf Planets

    S6:E8

    Our solar system is home to hundreds of strange, tiny worlds called dwarf planets, and new discoveries reveal the secrets of these mysterious places.

    Director:Unknown
    Writer:Unknown

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  18. How the Universe Works Season 6 Episode 9 - War on Asteroids
    0.0/10(0 votes)

    #18 - War on Asteroids

    S6:E9

    Scientists are using cutting-edge technology to stop an asteroid apocalypse, and for the first time, mankind is closer than ever to keeping Earth safe from these killer space rocks.

    Director:Unknown
    Writer:Unknown

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  19. How the Universe Works Season 6 Episode 10 - Mystery of Spacetime
    0.0/10(0 votes)

    #19 - Mystery of Spacetime

    S6:E10

    Spacetime is the secret structure that controls our universe, and this strange four-dimensional substance controls time, light, and energy. It will also determine how our universe will end.

    Director:Unknown
    Writer:Unknown

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  20. How the Universe Works Season 10 Episode 1 - Secrets of the Cosmic Web
    0.0/10(0 votes)

    #20 - Secrets of the Cosmic Web

    S10:E1

    New research reveals an intergalactic network known as the Cosmic Web.

    Director:Unknown
    Writer:Unknown

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  21. How the Universe Works Season 10 Episode 2 - Curse of the Cosmic Rays
    0.0/10(0 votes)

    #21 - Curse of the Cosmic Rays

    S10:E2

    Experts attempt to determine where cosmic rays originate in the universe.

    Director:Unknown
    Writer:Unknown

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  22. How the Universe Works Season 10 Episode 3 - Hunt for Dark Matter
    0.0/10(0 votes)

    #22 - Hunt for Dark Matter

    S10:E3

    Physicists attempt to determine if Dark Matter could actually exist.

    Director:Unknown
    Writer:Unknown

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  23. How the Universe Works Season 10 Episode 4 - Dark History of Earth
    0.0/10(0 votes)

    #23 - Dark History of Earth

    S10:E4

    Experts explore how Earth's disastrous history led to human evolution.

    Director:Unknown
    Writer:Unknown

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  24. How the Universe Works Season 10 Episode 5 - Hunt for the Universe's Origin
    0.0/10(0 votes)

    #24 - Hunt for the Universe's Origin

    S10:E5

    Experts explore the elusive endeavor of determining the age of the cosmos.

    Director:Unknown
    Writer:Unknown

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  25. How the Universe Works Season 10 Episode 6 - Voyager's Ultimate Mission
    0.0/10(0 votes)

    #25 - Voyager's Ultimate Mission

    S10:E6

    Experts explore the ultimate, ongoing mission of the Voyager spacecraft.

    Director:Unknown
    Writer:Unknown

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Best Episodes Summary

"Uranus & Neptune: Rise of the Ice Giants" is the best rated episode of "How the Universe Works". It scored 9/10 based on 1 votes. Directed by Unknown and written by Unknown, it aired on 2/6/2018. This episode scored 0.5 points higher than the second highest rated, "Secret History of Pluto".