PBS Space Time

@pbsspacetime

3.5m subscribers

441 (441 saved) videos

539.0m total views

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 with our astrophysicist host: Matthew O’Dowd. For all business inquiries and sponsorship opportunities please reach out to: [email protected] Matt O'Dowd spends his time studying the universe, especially really far-away things like quasars, super-massive black holes, and evolving galaxies. He uses telescopes in space to do it. Matt completed his Ph.D. at NASA's Space Telescope Science Institute, followed by work at the University of Melbourne and Columbia University. He's now a professor at the City University of New York's Lehman College and an Associate at the American Museum of Natural History's Hayden Planetarium. Previous host Gabe Perez-Giz is an astrophysicist who studies black hole physics. He received his Ph.D. from Columbia University and also hosted PBS Infinite Series.

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We Thought Black Holes Ended in Singularities. They Might End In a Frozen Big Bang.

We Thought Black Holes Ended in Singularities. They Might End In a Frozen Big Bang.

591.6k views 2026-05-21

35.6k likes 3.6k comments

We Found Galaxies Too Old for the Universe

We Found Galaxies Too Old for the Universe

152.5k views 2026-04-30

16.0k likes 1.7k comments

Earth’s Core Should Be Impossible. A New State of Matter Explains It.

Earth’s Core Should Be Impossible. A New State of Matter Explains It.

346.9k views 2026-04-16

27.5k likes 2.6k comments

Something Disturbing Happens When You Solve Einstein's Equations This Way

Something Disturbing Happens When You Solve Einstein's Equations This Way

246.7k views 2026-04-02

21.5k likes 2.8k comments

Martian Soil Is Deadly. And That's Why It Might Support Life.

Martian Soil Is Deadly. And That's Why It Might Support Life.

53.7k views 2026-03-19

8.1k likes 1.1k comments

Most of Reality Is Invisible. We May Finally Be About to Reveal It.

Most of Reality Is Invisible. We May Finally Be About to Reveal It.

258.6k views 2026-03-05

24.1k likes 3.0k comments

The Universe Is Racing Apart. We May Finally Know Why.

The Universe Is Racing Apart. We May Finally Know Why.

269.5k views 2026-02-19

25.6k likes 3.0k comments

Our Only Chance To Finally Unlock The Gravity Particle.

Our Only Chance To Finally Unlock The Gravity Particle.

3.5k views 2026-02-05

707 likes 116 comments

This Particle Solved Everything. We Just Found Out It Isn't Real

This Particle Solved Everything. We Just Found Out It Isn't Real

66.1k views 2026-01-22

11.1k likes 1.2k comments

The Universe Itself Might Be Hiding the Gravity Particle From Us

The Universe Itself Might Be Hiding the Gravity Particle From Us

217.9k views 2026-01-13

21.0k likes 3.0k comments

Black Holes. Explained. For 1.5 Hours.

Black Holes. Explained. For 1.5 Hours.

94.2k views 2025-12-18

5.5k likes 694 comments

Heisenberg Made a Discovery in 1925. We Still Can't Explain It

Heisenberg Made a Discovery in 1925. We Still Can't Explain It

269.1k views 2025-12-11

23.2k likes 2.6k comments

Do We Live in the Rarest Solar System In The Universe? We're about to find out!

Do We Live in the Rarest Solar System In The Universe? We're about to find out!

262.8k views 2025-11-25

27.2k likes 3.5k comments

The Gravity Particle Should Exist. So Where Is It?

The Gravity Particle Should Exist. So Where Is It?

228.4k views 2025-11-13

22.9k likes 2.6k comments

Why Antimatter Engines Could Launch In Your Lifetime

Why Antimatter Engines Could Launch In Your Lifetime

345.8k views 2025-10-30

32.1k likes 2.8k comments

We Were WRONG About the Quantum Eraser! ft. @LookingGlassUniverse

We Were WRONG About the Quantum Eraser! ft. @LookingGlassUniverse

414.7k views 2025-10-16

34.6k likes 3.4k comments

Why Life on Mars Will DOOM Humanity

Why Life on Mars Will DOOM Humanity

716.0k views 2025-10-02

57.5k likes 9.8k comments

At What Point Does Spacetime Become Quantum?

At What Point Does Spacetime Become Quantum?

521.8k views 2025-09-18

53.0k likes 7.1k comments

The Most Important Satellite You’ve (Probably) Never Heard Of

The Most Important Satellite You’ve (Probably) Never Heard Of

167.2k views 2025-09-04

12.6k likes 1.3k comments

Is There Evidence For a Vast Multiverse?

Is There Evidence For a Vast Multiverse?

376.5k views 2025-08-14

19.2k likes 1.6k comments

Why The Multiverse Could Be Real

Why The Multiverse Could Be Real

518.6k views 2025-07-31

59.2k likes 3.6k comments

Why Is All DNA Right Handed?

Why Is All DNA Right Handed?

449.5k views 2025-07-17

54.8k likes 2.4k comments

Are The Fundamental Constants Finely Tuned? | The Naturalness Problem

Are The Fundamental Constants Finely Tuned? | The Naturalness Problem

416.1k views 2025-06-26

47.1k likes 2.8k comments

The Crisis In Physics: Are We Missing 17 Layers of Reality?

The Crisis In Physics: Are We Missing 17 Layers of Reality?

682.8k views 2025-06-12

30.4k likes 3.3k comments

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