Black holes keep ‘burping up’ stars they destroyed years earlier, and astronomers don’t know why::Years after ripping stars to shreds, 24 black holes suddenly flared up with radio waves in inexplicable ‘burping’ bouts. Half of all star-killing black holes may experience the same.

  • WhatAmLemmy@lemmy.world
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    1 year ago

    But it’s not a single point though, because blackholes with a different mass have different sizes, so it’s more like a “maximum density” that can exist in this universe…

    • Nouveau_Burnswick@lemmy.world
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      1 year ago

      It’s an oversimplification, but something with the mass of say, a human, will be crushed into a very very very very tiny space. A much smaller space than 0.1mm radius, which would hold Earth’s moon’s mass of 7.342×10^22 kg.

      • WhatAmLemmy@lemmy.world
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        1 year ago

        Yes… And something with the mass of the universe will crush into a significantly larger (yet comparatively tiny) volume of space… Thus, a black hole is basically the maximum density we can currently comprehend and theorize.

    • Tropic420@discuss.tchncs.de
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      1 year ago

      As far as i know the Mass of the black Hole is concentrated in the Center (singularity). But it is surouded by its schwarzschild Radius. Anything that enters it cant escape.

    • anlumo@lemmy.world
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      1 year ago

      Time slows down as the mass approaches the center, so it just can never reach it. It’s stuck in time dilation approaching infinity.