NASA’s Unexplained Files

Monday, February 3

Aliens in the Amazon

Season 6 • Episode 5

After Neil Armstrong's moonwalk, he leads an expedition into the Amazon to find a legendary library.

Monday, February 3

Secrets of the Alien Signals

Season 6 • Episode 6

Experts raise questions when NASA begins a strange experiment to communicate with dolphins.

Tuesday, February 4

Pluto's Evil Twin

Season 6 • Episode 4

After NASA's New Horizons spacecraft flies by Pluto, it encounters a strange alien world.

Tuesday, February 4

The Black Hole Next Door

Season 6 • Episode 3

Astronomers investigate the possible danger of a black hole speeding through the Milky Way.

Wednesday, February 5

Saturn's Moon Monsters

Season 6 • Episode 1

NASA discovers something strange on Saturn's biggest moon; disturbing evidence.

Wednesday, February 5

Planet of the Metal Aliens

Season 6 • Episode 7

Experts investigate if a nearby exoplanet could be the home to an alien civilization.

Thursday, February 6

Aliens vs. Stalin at Area 51

Season 6 • Episode 2

A former Area 51 insider alleges that the Roswell UFO incident was a Soviet conspiracy.

Thursday, February 6

Did Aliens Nuke Mars?

Season 6 • Episode 8

A discovery by NASA's Mars Curiosity rover reveals a possible war occurred 300 million years ago.

Friday, February 7

Lethal Weapons

Season 2 • Episode 7

Looking at how the comet of the century looks like an alien spacecraft.

Friday, February 7

Revenge of the Fireflies

Season 2 • Episode 8

Something in space is attacking astronaut's brains; space fireflies suddenly appear.

Sunday, February 9

JFK UFO Conspiracy

Season 5 • Episode 1

President Kennedy demands that the CIA share its UFO data with NASA; coded alien message on Mars.

Sunday, February 9

Rise of the Planet Killer

Season 4 • Episode 2

A mars mission captures an image of a strange structure on the planet.

Sunday, February 9

Mars's Deepest Secret

Season 4 • Episode 8

Soviet photos of the moon are intercepted by the CIA; a malfunction aboard the ISS.

Sunday, February 9

Curse of the Full Moon

Season 4 • Episode 5

Cosmonauts are trapped in a capsule in a frozen lake; a NASA scientist investigates the Hindenburg.

Sunday, February 9

Mystery of the Invisible Planet

Season 4 • Episode 7

A probe carrying a message for aliens malfunctions without cause as it enters deep space.

Sunday, February 9

Did Earth Have Two Moons?

Season 4 • Episode 6

A theory of Earth's abiogenesis may have started in the clouds of Venus.

Sunday, February 9

The Earth Next Door

Season 4 • Episode 4

Astronomers notice a planet in Earth's vicinity capable of supporting life.

Monday, February 10

The Earth Next Door

Season 4 • Episode 4

Astronomers notice a planet in Earth's vicinity capable of supporting life.

Monday, February 10

Did Earth Have Two Moons?

Season 4 • Episode 6

A theory of Earth's abiogenesis may have started in the clouds of Venus.

Monday, February 10

Rise of the Planet Killer

Season 4 • Episode 2

A mars mission captures an image of a strange structure on the planet.

Monday, February 10

Mars's Deepest Secret

Season 4 • Episode 8

Soviet photos of the moon are intercepted by the CIA; a malfunction aboard the ISS.

Monday, February 10

Alien Death Ray

Season 1 • Episode 3

Life may have been found on Mars; mysterious Moon Pigeons.

Monday, February 10

Mystery Space Squid

Season 1 • Episode 7

A NASA astronaut reports seeing a flying saucer in the skies above a U.S. Air Force test range.

Monday, February 10

Ghosts on a Comet

Season 3 • Episode 4

The Rosetta spacecraft discovers a comet that appears to be singing.

Tuesday, February 11

Interstellar Gold Rush

Season 1 • Episode 5

A distant planet shows an Earth-like atmosphere; a glowing light suggests an atmosphere on the Moon.

Tuesday, February 11

Shadow Deathstar

Astronaut Leroy Chiao's spacewalk is interrupted by bright lights flying past.

Tuesday, February 11

The Moon that Disappeared

Season 3 • Episode 5

Recently discovered documents show NASA's secret plan B for failure of the first moon landing.

Wednesday, February 12

Black Knight Rises

Season 1 • Episode 4

A piece of the sun seems to have vanished; the Hubble spots an unidentified object.

Wednesday, February 12

Ghosts on the Moon

Season 1 • Episode 6

Spaceships powered by atomic bombs; artificial rings encircle a star; strange lights on the moon.

Wednesday, February 12

Attack of the Thunderballs

Season 3 • Episode 8

Astronauts evacuate when a mystery object hurtles toward the International Space Station.

Thursday, February 13

Pluto Under Pressure

Season 3 • Episode 1

Lost tapes show that Apollo astronauts heard unexplained transmissions on the far side of the moon.

Thursday, February 13

Rise of the Ice Creatures

Season 3 • Episode 3

An Apollo 17 photo seems to show a US military outpost on the Moon.

Thursday, February 13

Curse of the Red Planet

Season 3 • Episode 6

Three cosmonauts mysteriously die as they re-enter Earth's atmosphere and NASA needs to know why.

Friday, February 14

Return of the Moon Bugs

Season 3 • Episode 2

NASA tracks an asteroid heading towards Earth but make an incredible discovery.

Friday, February 14

Red Storm Rising

Season 3 • Episode 7

Two astronauts trapped in the vacuum of space face a horrible death.

Friday, February 14

Hammer of Thor

Season 2 • Episode 3

Burning lights in the skies above Nevada and Utah; mysterious trails on the lunar surface.

Monday, February 17

Top Secret Terror

Season 2 • Episode 2

Images of Mercury show spider-like formations; A space shuttle mission almost ends in disaster.

Monday, February 17

Spacewalk of Doom

Season 2 • Episode 4

An astronaut on a spacewalk begins to drown; an asteroid that's been converted into a spacecraft.

Monday, February 17

Did We Nuke Jupiter?

Season 2 • Episode 5

New evidence could finally reveal the truth behind the mystery of the face on Mars.

Tuesday, February 18

Life in Hell

Season 2 • Episode 1

UFO crashes in Pennsylvania; NASA makes an unbelievable discovery, frozen water on Mercury.

Tuesday, February 18

Lethal Weapons

Season 2 • Episode 7

Looking at how the comet of the century looks like an alien spacecraft.

Tuesday, February 18

Aliens in the Amazon

Season 6 • Episode 5

After Neil Armstrong's moonwalk, he leads an expedition into the Amazon to find a legendary library.

Wednesday, February 19

Aliens vs. Stalin at Area 51

Season 6 • Episode 2

A former Area 51 insider alleges that the Roswell UFO incident was a Soviet conspiracy.

Wednesday, February 19

Did Aliens Nuke Mars?

Season 6 • Episode 8

A discovery by NASA's Mars Curiosity rover reveals a possible war occurred 300 million years ago.

Wednesday, February 19

Secrets of the Alien Signals

Season 6 • Episode 6

Experts raise questions when NASA begins a strange experiment to communicate with dolphins.