The Gravity Particle Ought to Be Real. So Where Is It?

The Gravity Particle Ought to Be Real. So Where Is It?

From PBS Space Time by PBS

June 12, 2026 · 28 min

About this episode

The episode explores the concept of the graviton and its significance in understanding gravity and the universe.

Head to https://brilliant.org/Spacetime/ to start learning for free. Plus, our viewers get 20% off an annual Premium subscription for unlimited daily access to everything Brilliant has to offer 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? Help us determine the future of Space Time with the PBS Annual Survey: https://to.pbs.org/2025SurveyST Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://www.pbsspacetime.com/shop Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime Search the Entire Space Time Library Here: https://search.pbsspacetime.com/ Hosted by Matt O'Dowd Written by Richard Dyer & Matt O'Dowd Post Production by Leonardo Scholzer Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producer: Andrew…

People in this episode

Host: Matt O'Dowd

Topics covered

  • gravity
  • graviton
  • quantum physics
  • theories of nature
  • universe

Keywords

  • graviton
  • gravity particle
  • quantum particle
  • theories of nature
  • PBS Space Time

Sponsors

Brilliant

Mentioned in this episode

Organizations: PBS, Kornhaber Brown

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