TV series
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 to bring to life these voyages that reveal unexplained sightings that have dogged many of NASA’s most famous missions.
Availability
Checked Jul 22, 2026
NASA's Unexplained Files premiered March 27, 2012. We don't have a confirmed streaming, rental or purchase option yet.
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 to bring to life these voyages that reveal unexplained sightings that have dogged many of NASA’s most famous missions.
Choose an episode, then use the watch options above for the show.
Episode 1
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.
Where to watch NASA's Unexplained Files
Episode 2
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.
Where to watch NASA's Unexplained Files
Episode 3
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?
Where to watch NASA's Unexplained Files
Episode 4
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?
Where to watch NASA's Unexplained Files
Episode 5
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?
Where to watch NASA's Unexplained Files
Episode 6
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?
Where to watch NASA's Unexplained Files
Episode 7
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?
Where to watch NASA's Unexplained FilesEpisode information updated Jul 24, 2026
Available now in United States
These shows are available now and closely match NASA's Unexplained Files.
Available nowShared themes
Available nowShared themes
Available nowShared themes
Available nowSimilar story and audience
Available nowSimilar story and audience
Available nowSimilar story and audience
Erik DellumsNarrator
Bill BirnesSelf - Author, 'The Day After Roswell'
ScienceUnited States
DiscoveryUnited States