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Can We Test Quantum Gravity?

Season 10 Episode 20 | 16m 51s

If we discover how to connect quantum mechanics with general relativity we’ll pretty much win physics. There are multiple theories that claim to do this, but it’s notoriously difficult to test them. Let’s talk about some ideas for quantum gravity experiments that can be done on a non-galaxy-sized lab bench, and in some cases already have been done.

Aired: 09/11/24
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Could sending a quantum twin across the galaxy make you both old and young at the same time?
It's possible that an event horizon is forming right behind and you won't know until its too late.
Are there no alien signals to find... or do we need to update how we search for them?
Physicists hope Planck stars can save us from black hole singularities and paradoxes.
Galaxies older than the universe? Webb's findings keep defying our best explanations.
Earth's core: solid or liquid? Yes — we know more about distant galaxies than our own interior.
Gödel found a time-travel solution in General Relativity, revealing spacetime can loop on itself.
Tardigrades can survive almost anything—even most of Mars. But one Martian chemical stops even them.
The Higgs boson may open a portal to hidden particles that could explain dark matter.