PBS Space Time: The Universe Tried to Hide the Gravity Particle. Physicists Found a Loophole.

19mAired 2026-02-05

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.

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Episodes

Season

7 episodes

PBS Space Time: The Universe Tried to Hide the Gravity Particle. Physicists Found a Loophole.

The Universe Itself Might Be Hiding the Gravity Particle From Us

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

The Universe Tried to Hide the Gravity Particle. Physicists Found a Loophole.

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

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

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

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