• MudMan@fedia.io
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    1 month ago

    I’m not an astrophysicist, but that ends up being the weird perception thing about them, right? Mostly they’re like a star of the same mass, and then a few will get really big and be at the center of a galaxy, but the perception is that of a natural disaster.

    Big ball of plasma in the center of the solar system that will definitely eventually explode and wipe out anything left alive on any surrounding planet? NBD. An object of the same mass but it’s smaller so it doesn’t shine? People picture it as being more immediately violent for some reason because the “light can’t escape” thing sounds so wild.

    • Fermion@feddit.nl
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      1 month ago

      Yeah, black holes in media where they are depicted as a giant space vacuum cleaner is a big pet peave of mine. Unless you get really close, nothing is remarkable about the orbital mechanics of a black hole. The equivalent mass star would have burned you up at a much further distance than the gravity starts to become noticeably wonky.

      It’s a shame that writers focus so much on the gravity and neglect accretion disks and astrophysical jets which do extend large distances and are visually stunning as well.

      • Swedneck@discuss.tchncs.de
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        1 month ago

        also the way they bend light, a proper physically simulated depiction of a black hole is so fucking cool because it just kinda intuitively looks like it’s so heavy it’s bending spacetime around it!

    • Skua@kbin.earth
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      1 month ago

      To be fair I think “light can’t escape” thing really just is that wild, it’s pretty captivating. The idea of it being the death of a star, one of the most important things to all life we know about, only adds to that sense. Stars are massive billion-year explosions, yes, but they also bring warmth and light and beauty. Black holes are the death of all of that, even if it’s not technically more dangerous from the same distance

      • scintilla@beehaw.org
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        1 month ago

        Especially since we still don’t know how information preservation works in a black hole. There are ideas yes but we still aren’t sure if any of them are even right.

      • pressanykeynow@lemmy.world
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        1 month ago

        It’s not that light can’t escape that is scary it’s that the future of anything passing the event horizon changes to eventually end up in the singularity. Black holes are not just death, most of the things in the universe are death to us, black holes are literally the end of time.

          • pressanykeynow@lemmy.world
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            1 month ago

            Still the end of time for our universe, like it mathematically is. And we haven’t found any white hole in our universe yet despite it probably being much easier than finding black holes or most of the other stellar objects.

            • saimen@feddit.org
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              1 month ago

              Could the big bang be a white hole? And doesn’t it make sense the wormhole kind of meaning you “wait” in the black hole until the end of the universe and the beginning of a new one as it will look like time slows down for someone approaching a black hole for an outside observer but not for the person entering.

              • pressanykeynow@lemmy.world
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                1 month ago

                I don’t think we know how the end of the universe even from outside of the black hole would look like. If I remember correctly at some point even black holes may evaporate due to Hawking radiation.

                As for the big bang being a white whole, there are a lot of problems. Like it would mean the universe started at one point in space and that’s the opposite of what we see that the universe started everywhere.