This Black Hole Could be Bigger Than The Universe [Kurzgesagt]

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• JohnDClay@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

  I don’t understand how the event horizon booms to be so large compared to it’s mass. And does a black hole suddenly pop into existence when that density is reached, or does it need to collapse or have some condensed distribution?

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  • SomethingBurger@jlai.lu ⁨11⁩ ⁨months⁩ ago

    A black hole is an object so dense and heavy, even light can’t escape its gravity. Black holes appear when a star collapses and reaches the required density.

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    • JohnDClay@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

      Yeah I get that. But the video was saying a black hole the diameter of the solar system has an average density inside the event horizon of air. I was wondering if you need to compress it any, or if a solar system sized volume of air would already be a black hole, or would it need to collapse to a singularity first?

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• elooto@lemmy.ml ⁨11⁩ ⁨months⁩ ago

  🤯

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