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PBS Space Time
Does Axionic Dark Matter Bind Galaxies Together?
Season 9
Episode 18
Quantum mechanics is our best theory of the fundamental nature of reality, but it's usually only distinguishable from familiar classical mechanics on the smallest scales. But it’s also possible that our entire galaxy is filled with a reverberating quantum mechanical wave that literally holds the galaxy together—and in fact explains all the dark matter that we see across the universe.
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15:34
We dive into the weird world of quantum chromodynamics and the strong force.
15:22
Let's explore Quintessence and find out what dark energy really is.
15:00
Today we’re going to try to save reality - or at least realism.
14:31
Is space so deadly that we’re effectively imprisoned in our solar system forever?
14:09
Black holes are very real, but are also a theoretical nightmare.
13:29
Neils Bohr once said “Physics concerns what we can say about Nature."
13:14
It’s possible to stitch together a Frankenstein flip book of galaxy evolution.
14:48
The effect of inhabitable space in the galaxy may be why we haven't seen aliens.
