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The Gravity Particle Should Exist. So Where Is It?

Physics is this close to understanding the entire universe. And what lives in this gap? Many physicists think it’s the elusive graviton—the quantum particle of gravity—whose discovery will finally allow us to stitch together our two great theories of nature into a single master theory. But what is the graviton, and does it even exist?
Season 11 Episode 16 Length 21:31 Premiere: 11/13/25

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Season 11 Episodes

Dark Energy Is Driving the Universe Apart. We May Finally Know Why.
S11 E22 Length 19:02 Premiere Date 02/19/26

Our Only Chance To Finally Unlock The Gravity Particle
S11 E21 Length 16:26 Premiere Date 02/05/26

The Particle We’ve Been Chasing for 30 Years Might Not Exist
S11 E20 Length 18:33 Premiere Date 01/22/26

The Universe Itself Might Be Hiding the Gravity Particle From Us
S11 E19 Length 18:42 Premiere Date 01/13/26

Heisenberg Made a Discovery in 1925. We Still Can't Explain It
S11 E18 Length 25:02 Premiere Date 12/11/25

Do We Live in the Rarest Solar System In The Universe? We're about to find out!
S11 E17 Length 21:17 Premiere Date 11/25/25

The Gravity Particle Should Exist. So Where Is It?
S11 E16 Length 21:31 Premiere Date 11/13/25

Why Antimatter Engines Could Launch In Your Lifetime
S11 E15 Length 19:52 Premiere Date 10/30/25

We Were Wrong About the Quantum Eraser!
S11 E14 Length 23:22 Premiere Date 10/16/25

Why Life on Mars Will Doom Humanity
S11 E13 Length 19:14 Premiere Date 10/02/25

At What Point Does Spacetime Become Quantum?
S11 E12 Length 19:01 Premiere Date 09/18/25

The Most Important Satellite You’ve (Probably) Never Heard Of
S11 E11 Length 12:39 Premiere Date 09/04/25

Is There a Simple Proof For a Vast Multiverse?
S11 E10 Length 16:18 Premiere Date 08/14/25

Why The Multiverse Could Be Real
S11 E9 Length 17:14 Premiere Date 07/31/25

Why Is All DNA Right Handed?
S11 E8 Length 18:56 Premiere Date 07/17/25

Are The Fundamental Constants Finely Tuned? | The Naturalness Problem
S11 E7 Length 17:21 Premiere Date 06/26/25

The Crisis In Physics: Are We Missing 17 Layers of Reality?
S11 E6 Length 18:19 Premiere Date 06/12/25

Is Our Model of Dark Energy Wrong? | New 4.2σ Results
S11 E5 Length 19:03 Premiere Date 05/29/25

Is Our Model of Dark Energy Wrong?
S11 E5 Length 18:50 Premiere Date 05/29/25

Is There A Simple Solution To The Fermi Paradox?
S11 E4 Length 18:50 Premiere Date 05/15/25

Quantum Energy Teleportation is Real!
S11 E3 Length 16:58 Premiere Date 05/01/25

Why Didn’t Antimatter Destroy The Universe?
S11 E2 Length 14:50 Premiere Date 04/17/25

New Evidence: Earth Had Rings (and Might Regain Them)
S11 E1 Length 16:30 Premiere Date 04/03/25

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