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PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.

Watch • 15:58
PBS Space Time
Your DNA's Codes Are (Probably) From Outer Space
Did you know that many of us have up to 4% neanderthal DNA?
Episode: S10 E36 | 15:58
Watch • 16:35
PBS Space Time
Will The Big Bang Happen Again (and Again)?
What if the Big Bang was just an endless cycle?
Episode: S10 E35 | 16:35
Watch • 19:39
PBS Space Time
The Final Barrier to (Nearly) Infinite Energy
Why are billions suddenly being pumped into fusion startups?
Episode: S10 E34 | 19:39
Watch • 9:59
Eons
Why Wasn't There A Second Age of Reptiles?
Why was it the mammals who triumphed?
Episode: S7 E15 | 9:59
Watch • 10:09
Eons
How Mountains Make Evolution Weird
What do mountains reveal about primates?
Episode: S7 E14 | 10:09
Watch • 9:56
Reactions
Why a Carbon Capture Breakthrough Will/Won't Save Us
Could a seemingly magical 300-year-old technology save us from climate change?
Episode: S11 E3 | 9:56
Watch • 14:50
Reactions
What the Research Actually Says About Fluoride in Drinking Water
Fluoride is everywhere in the discourse but here’s what the research actually says.
Episode: S11 E2 | 14:50
Watch • 10:39
Eons
The Mystery of the Cretaceous Pompeii
When you take a deeper look at Pompeii, a different story could be told about the final moments.
Episode: S7 E13 | 10:39
Watch • 16:36
PBS Space Time
The Crisis in Physics: Why the Higgs Boson Should Not Exist!
The universe should've collapsed after the Big Bang, but a light Higgs boson let us exist.
Episode: S10 E33 | 16:36