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What If the Cosmological Constant Is Not Constant?

Season 10 Episode 23 | 15m 14s

We know that the universe is getting bigger. And we know that the speed that the universe is getting bigger is also getting bigger. The standard assumption is that the acceleration rate is itself constant, which will result in ultimate heat death. But a recent survey of primordial sound waves frozen into the way galaxies are sprinkled through the universe reveals that this fate is now in question.

Aired: 10/09/24
Here’s the story we like to tell about the beginning of the universe.
We’ve never seen a TDE in the Milky Way, but we’ve seen them in distant galaxies.
Let’s talk about quantum gravity experiments that can be done here on Earth!
What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?
Have we reached the end of the line of discoverable elements?
Can we change the color of a black hole?
Learn about Nobel laureate Roger Penrose's idea of how consciousness is caused by quantum processes.
Faster than light travel may produce gravitational waves that we could see here on Earth.
All particles belong to two large groups: fermions and bosons.
Just how much stronger is this year’s solar activity going to get?