Oct 15, 2018 · 42m
New discoveries reveal that everything known about the moon could be wrong; investigators race to understand the mysteries of its dark and violent past.
Space's Deepest Secrets
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 pushed their ingenuity and curiosity to uncover some of the most groundbreaking findings in the history of space exploration. Hourlong episodes cover NASA's New Horizons mission to Pluto, the Hubble Telescope, the twin Voyager explorations, and other past, current and future missions and projects.
Season 5 Episodes
Browse every episode and jump into details.
Oct 22, 2018 · 42m
A mysterious star hundreds of light years away might hold the hard evidence of extraterrestrial life, as experts speculate that its bizarre behavior points to proof of a massive alien-made megastructure.
Oct 29, 2018 · 42m
New discoveries change everything known about Saturn's rings, revealing that they're newer and more mysterious than ever imagined, and that some day soon, they might disappear forever.
Season 5 FAQ
Quick answers about this season's release timeline and episode lineup.
When did Space's Deepest Secrets Season 5 premiere?
Space's Deepest Secrets Season 5 premiered on October 14, 2018.
How many episodes are in Space's Deepest Secrets Season 5?
Space's Deepest Secrets Season 5 has 3 episodes.
What is the first episode of Space's Deepest Secrets Season 5?
The season opens with Season 5 Episode 1, "Dark Origins of the Moon". It aired on October 15, 2018.
Go to Season 5 Episode 1