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PBS Space Time
How Black Holes Kill Galaxies
Season 5
Episode 24
When we first realized that black holes could have masses of millions or even billions of times that of the sun, it came as a bit of a shock. They were discovered as the driving force behind quasars, where matter is heated to extreme incandescence before its plunge into vast black holes. But if that weren’t enough, we soon realized that every decent-sized galaxy contains a supermassive black hole.
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