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The Best Episodes of The Universe Season 4

Every episode of The Universe Season 4 ranked from best to worst. Discover the Best Episodes of The Universe Season 4!

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From the planets to the stars and out to the edge of the unknown, history and science collide in a wondrous yet deadly adventure through space and time.

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Episode Rankings

  1. #1 Fan Favorite
    The Universe Season 4 Episode 1 - Death Stars
    7.3/10(68 votes)

    #1 - Death Stars

    S4:E1

    Season 4 opens with an exploration of dying stars, the process where stars become supernovas, and, occasionally, become the biggest blast in the universe as a gamma ray burst (GRB). One death star, named WR104, lurks 8,000 light-years from Earth and some believe its GRB arrow is aimed directly at us. A death star galaxy named 3C321 is a frightening vision of what could one day befall the Milky Way galaxy: a companion galaxy's black hole being hammered with a constant blast of high-energy particles, wreaking havoc with its celestial bodies. Nearby, Death Stars Eta Carinae and Betelgeuse burn through their fuel supplies as they hurtle toward extinction...which just may be too close for comfort.

    Director:Unknown
    Writer:Unknown

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  2. The Universe Season 4 Episode 2 - The Day the Moon Was Gone
    6.8/10(71 votes)

    #2 - The Day the Moon Was Gone

    S4:E2

    Without the moon, Earth would be a very different and desolate place today--four hours of sunlight with pitch-black nights, steady 100-mph winds spawning giant hurricanes that last for months, and virtually no complex life forms, much less humans. Safe to say, we probably owe our very existence to the moon. But what if it suddenly disappeared?

    Director:Unknown
    Writer:Unknown

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  3. The Universe Season 4 Episode 3 - It Fell From Space
    7.2/10(68 votes)

    #3 - It Fell From Space

    S4:E3

    Every year, thousands of objects both natural and manmade plummet through our atmosphere and crash into the Earth. These menacing messengers from the sky provide scientists with amazing insights into the natural, and not so natural, phenomena of the cosmos. From space rocks crashing through homes to cosmic boulders triggering mass extinctions to rocket parts landing on front lawns, explore objects that fall from the heavens, such as asteroids, comets, meteor showers and space debris.

    Director:Unknown
    Writer:Unknown

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  4. The Universe Season 4 Episode 4 - Biggest Blasts
    7.5/10(70 votes)

    #4 - Biggest Blasts

    S4:E4

    An examination of the most powerful explosions and blasts in the universe. Includes a look at the Mexico's Yucatán peninsula and the impact which caused the Chicxulub crater. Also a look at gamma rays and Big Bang Theory.

    Director:Unknown
    Writer:Unknown

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  5. The Universe Season 4 Episode 5 - The Hunt for Ringed Planets
    7.7/10(66 votes)

    #5 - The Hunt for Ringed Planets

    S4:E5

    They are breathtaking, lethal and a constant source of surprise. The stunning rings of Saturn have mesmerized countless scientists over the centuries. With particles the size of a house shooting at 53,000 miles per hour around the planet, any spacecraft passing through would meet an instant and catastrophic end. Inside the rings is like a NASCAR race - with bumping, jostling and frequent collisions that can cause a massive spin-out. Lesser known are the other planets that have rings - Uranus, Jupiter, Neptune, possibly Pluto and Mars. Even Earth has a ring. Comprised of some 200 satellites in a geosynchronous orbit, it is the only known man-made ring in the universe. But the most remarkable thing about rings is that they contain the story of the birth of our solar system, and entire distant galaxies. Rings are more than a wonder of the universe - they reveal the secrets of our own origins.

    Director:Unknown
    Writer:Unknown

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  6. The Universe Season 4 Episode 6 - 10 Ways to Destroy the Earth
    6.1/10(79 votes)

    #6 - 10 Ways to Destroy the Earth

    S4:E6

    Experts cook up ways you could destroy the Earth, including swallowing it with a black hole, blowing it up with anti-matter, hurling it into the Sun, and switching off gravity.

    Director:Unknown
    Writer:Unknown

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  7. The Universe Season 4 Episode 7 - The Search for Cosmic Clusters
    7.4/10(61 votes)

    #7 - The Search for Cosmic Clusters

    S4:E7

    They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clusters, all the stars were born at about the same time, from the same material and all are at the same approximate distance from Earth. This means we can be sure that any differences among them are due to their true natures and not distorted by different distances from Earth and other factors.

    Director:Unknown
    Writer:Unknown

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  8. The Universe Season 4 Episode 8 - Space Wars
    6.7/10(69 votes)

    #8 - Space Wars

    S4:E8

    Outer space is already an essential part of America's ability to fight wars. Our military depends on satellites for many things, such as communications, reconnaissance and targeting information. But so far, no country has put weapons into space, although the U.S. and China have both shown they can shoot down satellites with ground-based missiles. If weapons do become a part of space, how will they work, how effective will they be, and what type of damage could they do? From ground-based lasers to telephone-pole sized rods hurtling from space at two miles per second to the far out weapons of the distant future, it's time to "lock and load" for Space Wars.

    Director:Unknown
    Writer:Unknown

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  9. The Universe Season 4 Episode 9 - Liquid Universe
    7.8/10(63 votes)

    #9 - Liquid Universe

    S4:E9

    On alien planets, they rain from the sky as scalding iron. On distant moons, even at hundreds of degrees below zero, they slosh around in pristine lakes of methane. They can cover entire planets in miles-deep oceans of electrified hydrogen metal. Or erupt on alien worlds through miles-high geysers. They churn in the interiors of dead stars and even our own planet. They're so rare in the universe, they almost don't exist, but these are the magical liquids of our Liquid Universe.

    Director:Unknown
    Writer:Unknown

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  10. The Universe Season 4 Episode 10 - Pulsars & Quasars
    8.0/10(72 votes)

    #10 - Pulsars & Quasars

    S4:E10

    They sort of sound like the same phenomenon, but Pulsars and Quasars are very different. Pulsars are tiny--only a few miles across--but they spin as fast as a kitchen blender and sweep the sky with beacons of radiation that make them appear to flash on and off. They have unbelievably strong magnetic fields, are more accurate than atomic clocks...and they can even tell aliens just where to find the Earth! Quasars are at the other end of the spectrum. Quasars are huge cores of galaxies with black holes that are called "monsters" and which spit lobes of radiating gas called "DRAGNs." Quasars are so far away, we see them as they were only in the distant past--meaning they existed only in the early universe, when they may have played a major role in the creation of the galaxies themselves.

    Director:Unknown
    Writer:Unknown

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  11. The Universe Season 4 Episode 11 - Science Fiction, Science Fact
    7.5/10(74 votes)

    #11 - Science Fiction, Science Fact

    S4:E11

    Warp speed, transporters, wormholes and lasers--they are all staples of science fiction books, movies, and TV shows. But the fantastic world of tomorrow is quickly becoming the futuristic world of today. While you may not be "beaming" to your next appointment any time soon, researchers are preparing for the first tests of a present-day "transporter." And while scientists have long mocked Hollywood's visions of warp speed and faster-than-light travel as prohibited by Einstein's laws, a new generation of physicists continues to rewrite the fundamental rules of the universe. Is there a way around the cosmic speed limit? Maybe... as long as you're prepared to survive a journey through the ultra-high energies of one of the most violent places in the cosmos--the heart of a twisting, swirling vortex that leads either to strange, new worlds... or certain death.

    Director:Unknown
    Writer:Unknown

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  12. The Universe Season 4 Episode 12 - Extreme Energy
    7.7/10(66 votes)

    #12 - Extreme Energy

    S4:E12

    Ours is a universe of energy, from powerful jets ejected from black holes to the raw nuclear fury of our Sun. But, the total amount of energy in the universe maintains perfect equilibrium--no more can be added or taken away. Because of this, there are enormous amounts of energy being transferred...electric, thermal, kinetic and magnetic energy are just a few that keep our universe balanced--and create awesome cosmic events and stellar displays.

    Director:Unknown
    Writer:Unknown

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Season 4 Ratings Summary

"Death Stars" is the best rated episode of "The Universe" season 4. It scored 7.3/10 based on 68 votes. Directed by Unknown and written by Unknown, it aired on 8/18/2009. This episode is rated 0.5 points higher than the second-best, "The Day the Moon Was Gone".