Our Only Chance To Finally Unlock The Gravity Particle

There’s a new generation of experiments that may unlock the gravity particle.

Our Only Chance To Finally Unlock The Gravity Particle PBS Space Time

Premiered February 05, 2026
Our Only Chance To Finally Unlock The Gravity Particle

Physicists have long believed that detecting the particle of gravity—the graviton—was fundamentally impossible, with the universe itself seeming to block every direct attempt. This episode explores a new generation of clever experiments that may finally let us detect gravity’s particle, and why even succeeding wouldn’t quite mean what we think it does.

About the Program

PBS Space Time

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.

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