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NASA's Unexplained Files

7.120126 seasonsTV-GTV SeriesDocumentaryTalkMystery

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…

Where to watch

Discovery+ Amazon ChannelDiscovery+ Amazon ChannelDiscovery+Discovery+
Availability shown for United Kingdom · rights vary by country

Seasons & Episodes

E1
Saturn's Moon Monsters
Apr 11, 2019
E2
Aliens vs. Stalin at Area 51
Apr 18, 2019
E3
The Black Hole Next Door
Apr 25, 2019
E4
Pluto's Evil Twin
May 2, 2019
E5
Aliens in the Amazon
May 9, 2019
E6
Secrets of the Alien Signals
May 16, 2019
E7
Planet of the Metal Aliens
May 16, 2019
E8
Did Aliens Nuke Mars?
May 23, 2019

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NASA's Unexplained Files — streaming FAQ

Which OTT platform streams NASA's Unexplained Files?

NASA's Unexplained Files is streaming on Discovery+ in United Kingdom, and available to rent or buy on Apple TV Store and Amazon Video. It's not currently on Netflix.

Is NASA's Unexplained Files on Netflix?

No, NASA's Unexplained Files is not on Netflix in United Kingdom as of September 2026. It's currently on Discovery+.

Is NASA's Unexplained Files on Amazon Prime Video?

NASA's Unexplained Files isn't included with a Prime Video subscription in United Kingdom, but you can rent or buy it on Amazon Video.

Where can I watch NASA's Unexplained Files for free?

NASA's Unexplained Files is available on Discovery+ in United Kingdom, but you'll need an active subscription — there's no free option right now.

How many seasons are in NASA's Unexplained Files?

NASA's Unexplained Files has 6 seasons in total (47 episodes). The series concluded in 2019.

Are all episodes of NASA's Unexplained Files out yet?

Yes — all 47 episodes across 6 seasons of NASA's Unexplained Files are out and available to stream.

Is there a Season 7 of NASA's Unexplained Files?

No — NASA's Unexplained Files ended after 6 seasons, so there is no Season 7.