2min chapter

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#305 – Martin Rees: Black Holes, Alien Life, Dark Matter, and the Big Bang

Lex Fridman Podcast

CHAPTER

Is Every Galaxie a Black Hole?

Most galaxies have big black holes. They're very incised. The one in our galactic center weighs about as much as four million suns. It's thought that our galaxy may have been bright at some time in the past. But now, and that's when the black hole formed or grew. And so it's rather faint and detected indirectly by radio emission.

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