Space's Deepest Secrets poster
Where to stream

Space's Deepest Secrets

7.520168 seasonsTV-PGTV SeriesDocumentary

A new breed of explorer has taken space travel beyond the moon to unlock and reveal first-ever views of alien worlds and cosmic bodies far beyond anyone's imagination. "Space's Deepest Secrets" shares stories of the men and women who…

Where to watch

PhiloPhiloDiscovery+ Amazon ChannelDiscovery+ Amazon ChannelScience ChannelScience ChannelDiscovery +Discovery +Spectrum On DemandSpectrum On Demand
Availability shown for United States · rights vary by country

Seasons & Episodes

E1
Mystery of the Dead Planets
Mar 31, 2021
E2
Space's Great Wall
Apr 7, 2021
E3
Curse of the White Holes
Apr 14, 2021
E4
Bermuda Triangle of Space
Apr 21, 2021
E5
The Giant Ice Planets
Apr 28, 2021
E6
Secrets of the Asteroids
May 5, 2021
E7
Space Force Declassified
May 12, 2021
E8
The New Explorers

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Space's Deepest Secrets — streaming FAQ

Which OTT platform streams Space's Deepest Secrets?

Space's Deepest Secrets is streaming on Philo, Discovery+ and Science Channel in United States, and available to rent or buy on Amazon Video and Apple TV Store. It's not currently on Netflix.

Is Space's Deepest Secrets on Netflix?

No, Space's Deepest Secrets is not on Netflix in United States as of September 2026. It's currently on Philo and Discovery+.

Is Space's Deepest Secrets on Amazon Prime Video?

Space's Deepest Secrets isn't included with a Prime Video subscription in United States, but you can rent or buy it on Amazon Video.

Where can I watch Space's Deepest Secrets for free?

Space's Deepest Secrets is available to stream free (with ads) on Spectrum On Demand in United States.

How many seasons are in Space's Deepest Secrets?

Space's Deepest Secrets has 8 seasons in total (68 episodes). The series concluded in 2021.

Are all episodes of Space's Deepest Secrets out yet?

Yes — all 68 episodes across 8 seasons of Space's Deepest Secrets are out and available to stream.

Is there a Season 9 of Space's Deepest Secrets?

No — Space's Deepest Secrets ended after 8 seasons, so there is no Season 9.