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Season 2026 · Episode 1 of 11 Aired Jan 13, 2026

The Universe Itself Might Be Hiding the Gravity Particle From Us

Tue, Jan 13, 2026
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Next: S2026 E2

To progress to the next level in understanding reality, we need to combine quantum mechanics and Einstein’s general relativity. And to do that, most physicists believe we need a theory of quantum gravity .. which means we need gravitons. But it also seems like the laws of physics make it impossible to ever detect this quantum particle of gravity. Almost like the universe is set up to keep the final answer forever out of our reach. So, can we outsmart the universe, catch a graviton, and finally solve physics?

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Airs

Tue, Jan 13, 2026

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PBS Space Time

433 episodes

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S2026 · E1

in PBS Space Time