NASA's Unexplained Files

Countless mysterious objects have been spotted in the sky and many astronauts have reported seeing UFOs. NASA's Unexplained Files reveals groundbreaking footage and interviews from both astronauts and scientists to explore the idea that there could be life outside of our planet.

Show Info

Airs on: United States Science (2014 - now)
Schedule: Saturdays at 22:00 (60 min)
Status: Running
Show Type: Documentary
Episodes ordered: 8 episodes

Official site:

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Next Episode

Stonehenge on Mars

Episode 5x05; Jan 20, 2018

When NASA spots a something on Mars that resembles Stonehenge, they investigate what could have made this strange structure. Scientists discover a mysterious hole in Saturn's rings. An ancient tribe claims contact with alien visitors.

Previous Episodes

Episode NameAirdateTrailer
5x04: Earth's Secret AliensJan 13, 2018
5x03: The Sun's Evil TwinJan 6, 2018
5x02: Curse of the Gas GiantApr 19, 2017
View full episode list »