NASA’s Unexplained Files

Thursday, November 20

Shadow Deathstar

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

Thursday, November 20

Ghosts on a Comet

Season 3 • Episode 4

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

Thursday, November 20

Mars's Deepest Secret

Season 4 • Episode 8

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

Friday, November 21

Black Knight Rises

Season 1 • Episode 4

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

Friday, November 21

Return of the Moon Bugs

Season 3 • Episode 2

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

Friday, November 21

Saturn's Death Star

Season 5 • Episode 8

An orbiting object looks like the Death Star; the death of Yuri Gagarin; a satellite vanishes.

Monday, November 24

Pluto's Evil Twin

Season 6 • Episode 4

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

Monday, November 24

The Black Hole Next Door

Season 6 • Episode 3

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

Monday, November 24

Stonehenge on Mars

Season 5 • Episode 5

A NASA probe captures an image of a familiar structure on Mars' surface.

Tuesday, November 25

Secrets of the Alien Signals

Season 6 • Episode 6

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

Tuesday, November 25

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.

Tuesday, November 25

Saturn's Moon Monsters

Season 6 • Episode 1

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

Wednesday, November 26

Planet of the Metal Aliens

Season 6 • Episode 7

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

Wednesday, November 26

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, November 26

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, November 28

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.

Friday, November 28

Mars's Deepest Secret

Season 4 • Episode 8

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

Friday, November 28

Secret Aliens

Season 5 • Episode 4

An astronomer records an unusual radio signal from beyond the solar system.

Monday, December 1

Rise of the Ice Creatures

Season 3 • Episode 3

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

Monday, December 1

Shadow Deathstar

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

Monday, December 1

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, December 2

Attack of the Thunderballs

Season 3 • Episode 8

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

Tuesday, December 2

Black Knight Rises

Season 1 • Episode 4

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

Tuesday, December 2

Alien Death Ray

Season 1 • Episode 3

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

Wednesday, December 3

Ghosts on a Comet

Season 3 • Episode 4

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

Wednesday, December 3

Ghosts on the Moon

Season 1 • Episode 6

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

Wednesday, December 3

Shadow Deathstar

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

Thursday, December 4

Return of the Moon Bugs

Season 3 • Episode 2

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

Thursday, December 4

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.

Thursday, December 4

Black Knight Rises

Season 1 • Episode 4

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

Friday, December 5

Pluto Under Pressure

Season 3 • Episode 1

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

Friday, December 5

The Moon that Disappeared

Season 3 • Episode 5

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

Friday, December 5

Ghosts on the Moon

Season 1 • Episode 6

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