Starts With A Bang #42 - Black Holes And Gravitation
Starts With A Bang podcast
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Imaging a Black Hole Event Horizon
The event horizon telescope is using radio waves to try to learn something about black holes. It can see a bright ring of emission from gas that's nearby, but a dull spot in the middle because there's no gas emitting towards you from that spot. So this is sort of like looking at Saturn without the planet. Leo: I hadn't thought about it that way, but yeah, it's like you can see a ring and there's nothing in the middle.
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