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The Best Episodes of How the Universe Works Season 9

Every episode of How the Universe Works Season 9 ranked from best to worst. Discover the Best Episodes of How the Universe Works Season 9!

Binge this in 8h 24m•Peaking at 9.0/10

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
    How the Universe Works Season 9 Episode 1 - Journey to a Black Hole
    9.0/10(74 votes)

    #1 - Journey to a Black Hole

    S9:E1

    Journey to the heart of the M87 supermassive black hole, the first and only black hole ever photographed, and explore the mystery of how it grew so large, what lies inside, and how it controls the entire galaxy.

    Director:Unknown
    Writer:Unknown

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  2. How the Universe Works Season 9 Episode 2 - Mission to a Comet
    8.5/10(58 votes)

    #2 - Mission to a Comet

    S9:E2

    Experts embark on a ground-breaking mission to land on a comet.

    Director:Unknown
    Writer:Unknown

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  3. How the Universe Works Season 9 Episode 3 - Secrets Of The Sun
    8.6/10(59 votes)

    #3 - Secrets Of The Sun

    S9:E3

    A brand-new NASA mission to the Sun reveals cutting-edge discoveries about Earth's star; as the Parker Solar Probe dives through the Sun's atmosphere, what it finds challenges everything known about this strange place.

    Director:Unknown
    Writer:Unknown

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  4. How the Universe Works Season 9 Episode 4 - Aliens of the Microcosmos
    7.9/10(60 votes)

    #4 - Aliens of the Microcosmos

    S9:E4

    New discoveries reveal the power of microscopic alien organisms.

    Director:Unknown
    Writer:Unknown

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  5. How the Universe Works Season 9 Episode 5 - Curse of the White Dwarf
    8.4/10(56 votes)

    #5 - Curse of the White Dwarf

    S9:E5

    Dead stars called white dwarfs may be the key to understanding the cosmos.

    Director:Unknown
    Writer:Unknown

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  6. How the Universe Works Season 9 Episode 6 - War of the Galaxies
    8.4/10(54 votes)

    #6 - War of the Galaxies

    S9:E6

    Galaxies are locked in continual combat across the universe, and our own Milky Way will face its biggest opponent ever, the Andromeda Galaxy, in a titanic and deadly struggle that could create a new and unrecognizable super galaxy.

    Director:Unknown
    Writer:Unknown

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  7. How the Universe Works Season 9 Episode 7 - The Next Supernova
    8.5/10(55 votes)

    #7 - The Next Supernova

    S9:E7

    The galaxy is full of stars ready to explode into supernovas, a stellar detonation powerful enough to destroy all life on Earth; it's an event that hasn't occurred in 400 years, and the search is on to locate which star may be next.

    Director:Unknown
    Writer:Unknown

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  8. How the Universe Works Season 9 Episode 8 - Secret Lives Of Neutrinos
    8.5/10(56 votes)

    #8 - Secret Lives Of Neutrinos

    S9:E8

    Neutrinos are the most mysterious particles in the universe, and they power some of the most explosive events in the cosmos; new discoveries reveal how these ghosts pass through objects undetected and why they could be the reason humans exist.

    Director:Unknown
    Writer:Unknown

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  9. How the Universe Works Season 9 Episode 9 - Birth of Monster Black Holes
    8.1/10(50 votes)

    #9 - Birth of Monster Black Holes

    S9:E9

    New discoveries reveal an astonishing supermassive black hole that was born during the earliest days of the cosmos, and finding out how this giant grew so large so quickly may help to explain the very formation of the universe itself.

    Director:Unknown
    Writer:Unknown

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  10. How the Universe Works Season 9 Episode 10 - Gravitational Waves Revealed
    8.5/10(60 votes)

    #10 - Gravitational Waves Revealed

    S9:E10

    Gravitational waves are helping scientists explore the cosmos in revolutionary, new ways, and the discoveries they make are revealing the universe’s greatest mysteries.

    Director:Unknown
    Writer:Unknown

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  11. How the Universe Works Season 9 Episode 11 - Mystery of Alien Worlds
    8.4/10(54 votes)

    #11 - Mystery of Alien Worlds

    S9:E11

    New discoveries reveal the secrets of mysterious alien worlds.

    Director:Unknown
    Writer:Unknown

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Season 9 Ratings Summary

"Journey to a Black Hole" is the best rated episode of "How the Universe Works" season 9. It scored 9/10 based on 74 votes. Directed by Unknown and written by Unknown, it aired on 3/24/2021. This episode is rated 0.5 points higher than the second-best, "Mission to a Comet".