NASA’s Unexplained Files
TVPG
Documentary
Science
Paranormal
The filmmaker takes a look at various unexplained sightings of flying objects using footage of NASA’s space missions and interviews with astronauts and scientists.
Cast & Crew
Upcoming TV Airings
The airings below are based on a generic national schedule. Times and dates can vary by TV provider.
Sunday, April 12
Secrets of the Alien Signals
Season 6 • Episode 6
Experts raise questions when NASA begins a strange experiment to communicate with dolphins.
Sunday, April 12
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.
Sunday, April 12
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.
Sunday, April 12
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.
Sunday, April 12
The Black Hole Next Door
Season 6 • Episode 3
Astronomers investigate the possible danger of a black hole speeding through the Milky Way.
Sunday, April 12
Planet of the Metal Aliens
Season 6 • Episode 7
Experts investigate if a nearby exoplanet could be the home to an alien civilization.
Monday, April 13
Planet of the Metal Aliens
Season 6 • Episode 7
Experts investigate if a nearby exoplanet could be the home to an alien civilization.
Monday, April 13
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, April 13
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.
Monday, April 13
Shadow Deathstar
Astronaut Leroy Chiao's spacewalk is interrupted by bright lights flying past.
Monday, April 13
Stonehenge on Mars
Season 5 • Episode 5
A NASA probe captures an image of a familiar structure on Mars' surface.
Monday, April 13
Rise of the Ice Creatures
Season 3 • Episode 3
An Apollo 17 photo seems to show a US military outpost on the Moon.
Tuesday, April 14
Alien Death Ray
Season 1 • Episode 3
Life may have been found on Mars; mysterious Moon Pigeons.
Tuesday, April 14
Curse of the Gas Giant
Season 5 • Episode 2
The Curiosity Rover finds something strange on Mars; detectives turn to NASA for help.
Tuesday, April 14
A President's Close Encounter
Season 4 • Episode 3
The discovery of geysers on a moon; NASA's mission to detect life.
Wednesday, April 15
Interstellar Gold Rush
Season 1 • Episode 5
A distant planet shows an Earth-like atmosphere; a glowing light suggests an atmosphere on the Moon.
Wednesday, April 15
Secret Aliens
Season 5 • Episode 4
An astronomer records an unusual radio signal from beyond the solar system.
Wednesday, April 15
Mars's Deepest Secret
Season 4 • Episode 8
Soviet photos of the moon are intercepted by the CIA; a malfunction aboard the ISS.
Thursday, April 16
Ghosts on the Moon
Season 1 • Episode 6
Spaceships powered by atomic bombs; artificial rings encircle a star; strange lights on the moon.
Thursday, April 16
The Sun's Evil Twin
Season 5 • Episode 3
A photograph depicts two suns; Ghostly white swirls on the moon's surface baffle NASA scientists.
Thursday, April 16
Saturn's Death Star
Season 5 • Episode 8
An orbiting object looks like the Death Star; the death of Yuri Gagarin; a satellite vanishes.
Friday, April 17
Black Knight Rises
Season 1 • Episode 4
A piece of the sun seems to have vanished; the Hubble spots an unidentified object.
Friday, April 17
CIA's Secret Revenge
Season 5 • Episode 6
When the Soviet Union unveils its own space shuttle, the CIA hatches a secret revenge plot.
Friday, April 17
Rise of the Planet Killer
Season 4 • Episode 2
A mars mission captures an image of a strange structure on the planet.
Thursday, April 23
Black Knight Rises
Season 1 • Episode 4
A piece of the sun seems to have vanished; the Hubble spots an unidentified object.
Thursday, April 23
Shadow Deathstar
Astronaut Leroy Chiao's spacewalk is interrupted by bright lights flying past.
Thursday, April 23
Interstellar Gold Rush
Season 1 • Episode 5
A distant planet shows an Earth-like atmosphere; a glowing light suggests an atmosphere on the Moon.
Friday, April 24
Rise of the Ice Creatures
Season 3 • Episode 3
An Apollo 17 photo seems to show a US military outpost on the Moon.
Friday, April 24
Alien Death Ray
Season 1 • Episode 3
Life may have been found on Mars; mysterious Moon Pigeons.
Friday, April 24
Ghosts on the Moon
Season 1 • Episode 6
Spaceships powered by atomic bombs; artificial rings encircle a star; strange lights on the moon.
Monday, April 27
Shadow Deathstar
Astronaut Leroy Chiao's spacewalk is interrupted by bright lights flying past.
Monday, April 27
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.
Monday, April 27
Return of the Moon Bugs
Season 3 • Episode 2
NASA tracks an asteroid heading towards Earth but make an incredible discovery.
Watchlist Easy access to only the shows you care about — all in one simple place
Alerts Only important notifications — when a show is returning, when it becomes available to stream, and more.
Special Offers Exclusive products we release related to your favorite shows and streaming services