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
A UFO crashes in Pennsylvania. Was it a secret Soviet satellite or something far more dangerous? On Mercury, NASA finds the impossible: frozen water. A strange object causes a skyscraper-sized shadow on the surface of Mars's largest moon. What is it?
Where to watch NASA's Unexplained Files
Episode 2
Was the Moon landing faked? Images of Mercury reveal massive spider-like formations on its surface. Is it a geological formation or something ominous? A classified Space Shuttle mission ends in near-disaster. What was its mission?
Where to watch NASA's Unexplained Files
Episode 3
Are burning lights above Nevada and Utah signs of a secret space weapons project? What are the odd trails on the lunar surface near the Apollo landing sites? Does a strange space object spell disaster for the Space Shuttle crew?
Where to watch NASA's Unexplained Files
Episode 4
How could an astronaut on a spacewalk begin to drown? Have NASA scientists discovered an asteroid that was converted into a spacecraft? What are the strange objects spotted when NASA sends a secret payload into space?
Where to watch NASA's Unexplained Files
Episode 5
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?
Where to watch NASA's Unexplained Files
Episode 6
A Russian probe discovers the lunar soil was disturbed before the US or USSR got there. Did Nazis arrive first? Have scientists detected a laser signal from a planet capable of supporting life? Is there a Bermuda Triangle of Space?
Where to watch NASA's Unexplained Files
Episode 7
How did pictures from the Hubble telescope make the comet of the century look like an alien spacecraft? Has earth already been invaded by alien organisms? What mysterious force is smashing a near-earth asteroid to pieces?
Where to watch NASA's Unexplained Files
Episode 8
Something in space is attacking the brains of astronauts. What is it? Should NASA be worried about the sudden appearance of so-called space fireflies? Who is responsible for the bizarre glowing spiral in the skies over Norway?
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