The WORST episodes of NASA's Unexplained Files
Every episode of NASA's Unexplained Files ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of NASA's Unexplained Files!
Strange flying objects have been caught on NASA's cameras and astronauts have reported seeing UFOs. Some of the odd shapes and lights can be identified; others remain a mystery. We'll reveal NASA footage and interview the astronauts and scientists.
#1 - Did Aliens Nuke Mars?
Season 6 - Episode 8 - Aired 5/30/2019
A strange discovery by NASA's Mars Curiosity rover suggests the Red Planet was home to an alien nuclear war 300 million years ago, and experts investigate if an extraterrestrial Armageddon transformed an earth-like world into the wasteland we know today.
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#2 - Did We Nuke Jupiter?
Season 2 - Episode 5 - Aired 5/6/2015
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?
#4 - Red Storm Rising
Season 3 - Episode 7 - Aired 4/5/2016
Two astronauts trapped in the vacuum of space face an agonizing death; the first close up images of Pluto reveal an alien landscape, and residents of Houston struggle to explain videos of unidentified flying lights captured above their city at night.
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#5 - Rise of the Planet Killer
Season 4 - Episode 2 - Aired 9/6/2016
A mars mission captures an image of a strange structure on the planet; an intriguing sight on the dark side of the moon; a planet-eating star gives scientists a peek of Earth's bleak future.
#6 - A President's Close Encounter
Season 4 - Episode 3 - Aired 9/13/2016
The discovery of geysers on a moon; NASA's mission to detect life; an object is spotted approaching an asteroid.
#8 - Curse of the Full Moon
Season 4 - Episode 5 - Aired 9/27/2016
Cosmonauts are trapped in a capsule in a frozen lake; a NASA scientist investigates the Hindenburg; the full moon affects experiments.
#9 - Did Earth Have Two Moons?
Season 4 - Episode 6 - Aired 10/4/2016
A discovery suggests the hellish clouds of Venus may be the origin of life on Earth. A bizarre sighting 2,000 years ago raises the possibility that Earth once had two moons. A scientist helps the FBI crack the 1996 Olympic bombing.
#10 - Mystery of the Invisible Planet
Season 4 - Episode 7 - Aired 10/11/2016
A probe carrying a message to aliens malfunctions as it enters deep space. A NASA mission goes disastrously wrong when an imposter breaches Mission Control. Astronomers may have found an invisible planet around a distant star.
#11 - JFK UFO Conspiracy
Season 5 - Episode 1 - Aired 4/12/2017
A declassified letter written by President Kennedy demands the CIA share its UFO data with NASA. A bizarre pattern on the surface of Mars could be a coded alien message. Investigators are shocked to find a rocket crash-landed in a crater on the Moon.
#12 - The Sun's Evil Twin
Season 5 - Episode 3 - Aired 4/26/2017
Neil Armstrong enters an unexplained spin; an Apollo 17 photo seems to show a US military outpost on the Moon; possible alien life swimming in the oceans of Jupiter's moons.
#13 - CIA's Secret Revenge
Season 5 - Episode 6 - Aired 1/27/2018
When the Soviet Union unveils its own space shuttle, the CIA hatches a secret revenge plot. Recent discoveries shed new light on the destruction of Sodom and Gomorrah. A missing nuclear weapon could threaten a NASA base in the Arctic.
#14 - The Moon's Strange Secret
Season 5 - Episode 7 - Aired 2/3/2018
The last humans to walk on the Moon discover something strange on the surface. A NASA scientist investigates a strange phenomenon responsible for horrific mass deaths. A landmark NASA mission threatens to destroy the reputation of an American hero.
#15 - Saturn's Death Star
Season 5 - Episode 8 - Aired 2/10/2018
A mysterious object is orbiting Saturn, and it looks just like the Death Star. New evidence might shed new light on the mysterious death of Yuri Gagarin, the first man in space. When a cuting-edge satellite vanishes, fears of a space war escalate.
#16 - Saturn's Moon Monsters
Season 6 - Episode 1 - Aired 4/11/2019
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.
#17 - Aliens vs. Stalin at Area 51
Season 6 - Episode 2 - Aired 4/18/2019
When a former Area 51 insider alleges that the Roswell UFO incident was a nefarious Soviet conspiracy masterminded by Stalin, experts investigate if it was indeed an enemy plot against America -- or if the confession is just another cover-up.
#18 - The Black Hole Next Door
Season 6 - Episode 3 - Aired 4/25/2019
When astronomers discover a rogue black hole speeding through the Milky Way, they investigate how much danger this cosmic monster poses to Earth, and what would happen if it ever entered our solar system.
#19 - Pluto's Evil Twin
Season 6 - Episode 4 - Aired 5/2/2019
After NASA's New Horizons spacecraft flies by Pluto, it encounters a strange alien world that shuts down the probe's computers, and experts investigate if this mysterious object is an alien spacecraft hiding at the edge of our solar system.
#20 - Aliens in the Amazon
Season 6 - Episode 5 - Aired 5/9/2019
After Neil Armstrong's moonwalk, he led an expedition into 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.
#22 - Planet of the Metal Aliens
Season 6 - Episode 7 - Aired 5/23/2019
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.
#23 - Alien Death Ray
Season 1 - Episode 3 - Aired 3/6/2014
STS - 115 Triangle: September 20, 2006 - Space Shuttle Atlantis prepares to return home from work assembling the International Space Station, when the shuttle commander spots objects in a triangle formation. Alien X: Astronomers focus on a comet that has a X shape not commonly found in nature Life But Not As We Know It: Saturn's moon Titan has a primitive Earth like surface, but has liquid methane instead of water. Could life develope based on methane? Alien Star Wars: December 1970 - X-rays that can destroy planets are coming from an area without a star, could it be a sign of an alien war with advanced weaponry? Or is there a natural explanation. Aurora Arrow: In 2006 photos taken from the International Space Station show what looks like a space ship parked in the northern lights. Space Eel: A secret shuttle mission sees a snake like object moving across space. Could something live in the environment of space. Moon Pigeons: Apollo 10 photographs something they have dubbed moon pigeons, but their appearance always seems to bring trouble for the mission. Life on Mars: The Viking probe in 1975 looks for life on Mars, the agreed upon results show life. NASA dismisses these results. But new information may indicate the results were correct all along.
#24 - Rise of the Ice Creatures
Season 3 - Episode 3 - Aired 3/8/2016
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?
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#25 - Black Knight Rises
Season 1 - Episode 4 - Aired 3/11/2014
Cold Warrior: December 1998 - NASA astronauts begin construction of the International Space Station and photograph a strange object that some link to the 1950s story of the 'Black Knight'. Space Geysers: The Casini probe takes pictures of Saturn's moon Enceladus and sees massive geysers of liquid water on a moon that should be dead. These geysers also contain the building blocks of life. Hole in the Sun: July 18, 2013 - Scientists observing the Sun see what appears to be a 500,000 mile hole creep across the Surface of the Sun. Alien Spies: September 2002 - An amateur astronomer spots a bright object orbiting Earth. He reports the object to the authorities and NASA scientists are surprised to find the object covered in paint. Martian Tracks: November 1971 - Mariner 9 arrives on Mars and sends back images of unusual tracks on the planet's surface. Faster Than The Speed of Light: December 1995 - The Hubble Telescope is pointed at a completely empty spot of sky to see what's there and surprisingly the faint galaxies seen appear to be traveling faster than the speed of light. STS-114 Boomerang: July 26, 2005 - One of the cameras from Space Shuttle Discovery sees an object change direction own its own. We Are The Aliens: The theory of Panspermia is that life here on Earth may have originated elsewhere, by riding rocks to Earth after being knocked off other planets by asteroid strikes.