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The Worst Episodes of NASA's Unexplained Files

Every episode of NASA's Unexplained Files ranked from worst to best. Explore the Worst Episodes of NASA's Unexplained Files!

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Dive into the mysteries of some of NASA’s most curious missions and explore stories of engineering achievement and human endurance. Each episode offers first hand testimony from astronauts, NASA mission footage, plus beautifully rendered CGI

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  1. #1 Worst Episode
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    NASA's Unexplained Files Season 1 Episode 1 - Pilot
    5.9/10(30 votes)

    S1:E1

    Strange flying objects have been caught on NASA’s cameras and astronauts have reported seeing UFOs. Some can be identified; others remain a mystery. We’ll reveal NASA footage and interview the astronauts and scientists.

    Director:Unknown
    Writer:Unknown

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  2. NASA's Unexplained Files Season 1 Episode 3 - Alien Death Ray
    6.3/10(44 votes)

    S1:E3

    The Viking Lander may have found life on Mars, so why don’t we know about it? What is the most destructive force in the universe? How could a starship be seen in the Aurora Borealis? And what are NASA’s mysterious Moon Pigeons?

    Director:Unknown
    Writer:Unknown

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  3. NASA's Unexplained Files Season 1 Episode 7 - Mystery Space Squid
    6.3/10(12 votes)

    S1:E7

    What could make a NASA astronaut report seeing a flying saucer in the skies above a US Air Force test range? How have the swirling gases of Saturn formed a perfect Hexagon that has hovered above the planet’s pole for 30 years?

    Director:Unknown
    Writer:Unknown

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  4. NASA's Unexplained Files Season 1 Episode 5 - Interstellar Gold Rush
    6.5/10(38 votes)

    S1:E5

    A distant planet shows evidence of an Earth-like atmosphere, while a mysterious light suggests an atmosphere on the Moon. Have we found evidence of a crashed alien ship in the asteroid belt? Why are there "blueberries" on Mars?

    Director:Unknown
    Writer:Unknown

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  5. NASA's Unexplained Files Season 1 Episode 6 - Ghosts on the Moon
    6.5/10(16 votes)

    S1:E6

    Could spaceships be powered by atomic bombs? Can artificial rings encircle an entire star? why was Neil Armstrong’s transmission feed cut off when he spotted strange lights on the Moon? And how can lightning talk to itself?

    Director:Unknown
    Writer:Unknown

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  6. NASA's Unexplained Files Season 4 Episode 5 - Curse of the Full Moon
    6.6/10(25 votes)

    S4:E5

    Two cosmonauts fight for their lives while trapped inside a capsule in a frozen lake. A NASA scientist investigates the deadly Nazi secret that doomed the Hindenburg. NASA astronomers are spooked when the full moon starts affecting their experiments.

    Director:Unknown
    Writer:Unknown

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  7. NASA's Unexplained Files Season 1 Episode 2 - Shadow Deathstar
    6.7/10(20 votes)

    S1:E2

    Astronaut Leroy Chao’s spacewalk is interrupted by bright lights flying past. A flying saucer photographed from the Apollo capsule, dark shapes caught on camera shadowing the shuttle. The ideas are science fiction, but the incidents are science fact.

    Director:Unknown
    Writer:Unknown

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  8. NASA's Unexplained Files Season 2 Episode 3 - Hammer of Thor
    6.7/10(28 votes)

    S2:E3

    Are burning lights above Nevada and Utah signs of a secret space weapons project? What are the odd trails on the lunar surface near the Apollo landing sites? Does a strange space object spell disaster for the Space Shuttle crew?

    Director:Unknown
    Writer:Unknown

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  9. NASA's Unexplained Files Season 4 Episode 1 - Pluto's Stranger Things
    6.7/10(28 votes)

    S4:E1

    Astronomers find evidence for incredible alien technology around a distant star. The first pictures of Pluto may show something moving across its surface. Apollo astronauts see something they can't explain as they approach the Moon.

    Director:Unknown
    Writer:Unknown

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  10. NASA's Unexplained Files Season 6 Episode 7 - Planet of the Metal Aliens
    6.7/10(26 votes)

    S6:E7

    Experts investigate if a nearby exoplanet could be the home to a alien civilization of strange, metallic monsters, after a new discovery confirms that life can thrive on such a strange world.

    Director:Unknown
    Writer:Unknown

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  11. NASA's Unexplained Files Season 1 Episode 4 - Black Knight Rises
    6.8/10(37 votes)

    S1:E4

    A chunk of the sun appears to have vanished. An ominous dark craft beneath the Space Shuttle Endeavour. Hubble spots thousands of unidentified objects traveling faster than light. Are we being watched?

    Director:Unknown
    Writer:Unknown

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  12. NASA's Unexplained Files Season 2 Episode 2 - Top Secret Terror
    6.8/10(27 votes)

    S2:E2

    Was the Moon landing faked? Images of Mercury reveal massive spider-like formations on its surface. Is it a geological formation or something ominous? A classified Space Shuttle mission ends in near-disaster. What was its mission?

    Director:Unknown
    Writer:Unknown

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  13. NASA's Unexplained Files Season 6 Episode 1 - Saturn's Moon Monsters
    6.8/10(25 votes)

    S6:E1

    When NASA discovers something strange on Saturn's biggest moon, experts investigate if aliens feeding on the electric atmosphere could be the culprit. The disturbing evidence points to a grisly apocalypse if these monsters ever make it to Earth.

    Director:Unknown
    Writer:Unknown

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  14. NASA's Unexplained Files Season 2 Episode 1 - Life in Hell
    6.9/10(24 votes)

    S2:E1

    A UFO crashes in Pennsylvania. Was it a secret Soviet satellite or something far more dangerous? On Mercury, NASA finds the impossible: frozen water. A strange object causes a skyscraper-sized shadow on the surface of Mars's largest moon. What is it?

    Director:Unknown
    Writer:Unknown

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  15. NASA's Unexplained Files Season 2 Episode 4 - Spacewalk of Doom
    6.9/10(29 votes)

    S2:E4

    How could an astronaut on a spacewalk begin to drown? Have NASA scientists discovered an asteroid that was converted into a spacecraft? What are the strange objects spotted when NASA sends a secret payload into space?

    Director:Unknown
    Writer:Unknown

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  16. NASA's Unexplained Files Season 2 Episode 5 - Did We Nuke Jupiter?
    6.9/10(29 votes)

    S2:E5

    Could NASA be responsible for a nuclear explosion on Jupiter? Could new evidence finally solve the mystery of the iconic face on Mars? What unknown force crashed a spacecraft from the Apollo program into the lunar surface?

    Director:Unknown
    Writer:Unknown

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  17. NASA's Unexplained Files Season 3 Episode 2 - Return of the Moon Bugs
    6.9/10(32 votes)

    S3:E2

    Apollo 12 astronauts bring back something alive from the moon and NASA track an asteroid heading towards Earth but make a shocking discovery: it’s not an asteroid, but an object that’s artificial in nature.

    Director:Unknown
    Writer:Unknown

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  18. NASA's Unexplained Files Season 3 Episode 3 - Rise of the Ice Creatures
    6.9/10(29 votes)

    S3:E3

    Neil Armstrong goes into an unexplained spin. He needs to figure out what’s causing it, or he faces certain death. An Apollo 17 photo seems to show a military outpost on the Moon & could there be alien life swimming in the oceans of Jupiter’s moons?

    Director:Unknown
    Writer:Unknown

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  19. NASA's Unexplained Files Season 4 Episode 2 - Rise of the Planet Killer
    6.9/10(30 votes)

    S4:E2

    A probe captures an image of a strange structure on Mars. Files from the first Apollo mission record an eerie sighting on the dark side of the Moon. A planet-eating star gives scientists a glimpse of Earth's terrible demise.

    Director:Unknown
    Writer:Unknown

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  20. NASA's Unexplained Files Season 6 Episode 5 - Aliens in the Amazon
    6.9/10(24 votes)

    S6:E5

    After Neil Armstrong's moonwalk, he led an expedition to the Amazon to find a legendary library that holds all knowledge of an advanced alien civilization. Experts ask if a close encounter on the moon's surface inspired Armstrong's mysterious quest.

    Director:Unknown
    Writer:Unknown

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  21. NASA's Unexplained Files Season 6 Episode 6 - Secrets of the Alien Signals
    6.9/10(27 votes)

    S6:E6

    When NASA begins a strange experiment to communicate with dolphins, experts investigate if it's a prelude to making alien contact. But some fear that such a discovery could have apocalyptic consequences.

    Director:Unknown
    Writer:Unknown

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  22. NASA's Unexplained Files Season 2 Episode 7 - Lethal Weapons
    7.0/10(22 votes)

    S2:E7

    How did pictures from the Hubble telescope make the comet of the century look like an alien spacecraft? Has earth already been invaded by alien organisms? What mysterious force is smashing a near-earth asteroid to pieces?

    Director:Unknown
    Writer:Unknown

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  23. NASA's Unexplained Files Season 2 Episode 8 - Revenge of the Fireflies
    7.0/10(28 votes)

    S2:E8

    Something in space is attacking the brains of astronauts. What is it? Should NASA be worried about the sudden appearance of so-called space fireflies? Who is responsible for the bizarre glowing spiral in the skies over Norway?

    Director:Unknown
    Writer:Unknown

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  24. NASA's Unexplained Files Season 3 Episode 4 - Ghosts on a Comet
    7.0/10(27 votes)

    S3:E4

    When a Chinese moon rover breaks down, a NASA scientist points to a mysterious material that seemed to sabotage the Apollo missions, decades earlier. The Rosetta spacecraft finds a comet that appears to be singing.

    Director:Unknown
    Writer:Unknown

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  25. NASA's Unexplained Files Season 3 Episode 5 - The Moon that Disappeared
    7.0/10(28 votes)

    S3:E5

    Recently discovered documents reveal NASA's secret plan B for failure of the first moon landing, a Soyuz capsule carrying astronaut Peggy Whitson back to Earth vanishes without explanation and NASA’s Cassini mission unravels a three hundred year old.

    Director:Unknown
    Writer:Unknown

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Worst Episodes Summary

"Pilot" is the worst rated episode of "NASA's Unexplained Files". It scored 5.9/10 based on 30 votes. Directed by Unknown and written by Unknown, it aired on 3/27/2012. This episode scored 0.4 points lower than the second lowest rated, "Alien Death Ray".