this post was submitted on 06 Aug 2025
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Science Memes

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[–] Univ3rse@lemmynsfw.com 0 points 1 month ago (1 children)

The fact that there's some of them hurtling through space, unrestrained by the common movements of the rest of the galaxy, is really something to think about.

[–] Carrolade@lemmy.world 0 points 1 month ago

It's in the same vein as gamma ray bursts. Could possibly cause problems, but space is so big, so heavily occupied by empty space, that the odds of ever encountering one vs just more empty space is almost infinity:1.

I mean, our planet is billions of years old and hasn't encountered a single one yet, based on the fact it's still comfortably in orbit around the sun.

Asteroids are far, far more concerning. Encountered a bunch of those already.

[–] MudMan@fedia.io 0 points 1 month ago (7 children)

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 0 points 1 month ago (2 children)

Yeah, black holes in media where they are depicted as a giant space vacuum 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.

[–] AngryCommieKender@lemmy.world 0 points 1 month ago (2 children)

If we ever invent FTL someone is gonna make a black hole bomb.

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[–] Skua@kbin.earth 0 points 1 month ago (6 children)

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

[–] SpaceNoodle@lemmy.world 0 points 1 month ago* (last edited 1 month ago)

The true death of that is more depressing than torturous: Heat Death.

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[–] emergencyfood@sh.itjust.works 0 points 1 month ago (1 children)

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?

The sun isn't heavy enough to go supernova. (Unless it has a companion, but there's no evidence of one so far.)

[–] MudMan@fedia.io 0 points 1 month ago

It will still expand and shed enough stuff to effectively blanch whatever part of the solar system it doesn't actually engulf, though.

It doesn't even have to go supernova to kill everything, which is kind of the point.

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[–] Knuschberkeks@leminal.space 0 points 1 month ago

"marauding black death wrapped in a spherical gradient of tortured space time" is a great title for a progressive rock or technical death metal song

[–] radix@lemmy.world 0 points 1 month ago (1 children)

Teachers: You can't divide by zero.
Nature: Hey guys, check this shit out.

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[–] adry@piefed.social 0 points 1 month ago (1 children)

Plus, black holes may do contain universes. This year there was some evidence pointing that our universe is actually trapped inside one... ref: https://futurism.com/universe-trapped-inside-black-hole

[–] TheLeadenSea@sh.itjust.works 0 points 1 month ago* (last edited 1 month ago) (2 children)

I heard it more like, the fact that our universe is expanding faster than light, means there are parts of the universe we can never reach, even at light speed, which is mathematically identical to the event horizon of a black hole, which not even light can escape from. There's not a singularity at the center of our observable universe, though.

[–] NaibofTabr@infosec.pub 0 points 1 month ago (2 children)

There's not a singularity at the center of our observable universe, though.

Well, er, how would you know?

Perhaps the space inside the event horizon is so large, and the distance to the singularity so great, that the expansion we observe from our reference point appears uniform.

[–] TheLeadenSea@sh.itjust.works 0 points 1 month ago (3 children)

I know there is no singularity at the center of our observable universe as we are at the center of our observable universe and the Earth has not been destroyed by a singularity.

[–] bstix@feddit.dk 0 points 1 month ago (1 children)

That's sounds exactly like what someone trapped inside a singularity would say.

[–] TheLeadenSea@sh.itjust.works 0 points 1 month ago (1 children)

I think someone trapped inside a singularity would be too dense to say anything :)

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[–] VoterFrog@lemmy.world 0 points 1 month ago* (last edited 1 month ago)

Well the reason we know is because we're at the center of the observable universe and Earth isn't a singularity.

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[–] dwindling7373@feddit.it 0 points 1 month ago (4 children)

Tell me you don't understand black holes using a lot of words.

As far as gravity goes they are equivalent to the star that they collapsed from and just as deadly.

The difference is that you can get that much closer before "impacting" with it, but you and superman would be fucked pretty much at the same distance from it.

And I think you need a lot less than 300 writers to conjure an idea that leverage our fantasy in more and better ways.

[–] sem@lemmy.blahaj.zone 0 points 1 month ago (4 children)

And an infinitely dense point in spacetime doesn't necessarily exist: it's just what general relativity predicts is at the center of a black hole.

The last time our physical model of the universe predicted an infinite value, we ended up discovering new physics eventually (the ultrasound catastrophe).

[–] Ageroth@reddthat.com 0 points 1 month ago (1 children)
[–] BussyGyatt@feddit.org 0 points 1 month ago (1 children)

yeesh, what was the ultrasound catastrophe then?

[–] sem@lemmy.blahaj.zone 0 points 1 month ago* (last edited 1 month ago) (2 children)

That whole comment was a struggle to type on my phone at the time because the screen was wet, so at the end that one slipped though.

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[–] drosophila@lemmy.blahaj.zone 0 points 1 month ago* (last edited 1 month ago)

I mean, the gravitational gradient is much higher. To me this kind of sounds like saying "there's nothing that special about a 10 watt laser, an LED lightbulb puts out the same amount of light", but a 10 watt laser is enough to instantly and permanently blind you.

Its true that there's nothing that special about orbiting a black hole, but I think its not really logically inconsistent (inasmuch as a superhero can be logically consistent) to say "even if superman could survive dipping into a sun he probably wouldn't be too happy if he stuck his arm into an event horizon".

[–] Wirlocke@lemmy.blahaj.zone 0 points 1 month ago

Nothing you said about black holes really contradicts what they were saying? Even if a star and black hole can have the same gravity, there is still a shell of space that once you pass you cannot ever return. I'm sure Superman could go into a star and come back out, not so much with a black hole.

[–] Railing5132@lemmy.world 0 points 1 month ago (1 children)

I knew before coming into the comments there would be a pendatic with this argument

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[–] LibertyLizard@slrpnk.net 0 points 1 month ago (5 children)

My understanding is that the singularity is not proven to exist and many physicists believe it is an artifact of our incorrect understanding of the physics involved.

[–] Skua@kbin.earth 0 points 1 month ago (11 children)

Well, what exactly is inside the event horizon is unproven because we cannot possibly look. All of the rest of the physics seems to check out, though, and we know that there are things out there that behave just like our models of black holes predict. It's an incomplete understanding rather than a necessarily incorrect one. If it is something else, it'd have to be something that looks more or less exactly like a black hole to an outside observer

[–] LibertyLizard@slrpnk.net 0 points 1 month ago* (last edited 1 month ago) (1 children)

I would think an object of extremely high density could be difficult to distinguish from a point of infinite density, especially given the nature of the event horizon.

I’m not saying the models are definitely wrong but usually when one of your terms goes to infinity it is a good reason to be skeptical.

[–] marcos@lemmy.world 0 points 1 month ago (1 children)

All of the rest of the physics seems to check out, though

What is the entire problem, because all of the rest of the physics don't get you coherent answers around a black hole.

[–] Skua@kbin.earth 0 points 1 month ago (2 children)

In one, you mean? They get you perfectly fine answers around one

[–] marcos@lemmy.world 0 points 1 month ago

At the close vicinity where they don't actually agree if it's inside or outside.

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[–] supersquirrel@sopuli.xyz 0 points 1 month ago* (last edited 1 month ago)

Idk, I don't think most scifi pushes the envelope of what we can imagine, rather it provides a convenient escape to galaxies less incomprehensible than the bewilderment of earth where the author can make a point about spacewar and unstoppable mindless empires.

shrugs

Scifi (like any other genre) needs to continually reaffirm its association with creativity, not assume because paper thin character types are fighting spacewars for feudal empires and space corporations that it counts as pushing the envelope of our imaginations.

/end side rant

[–] Skua@kbin.earth 0 points 1 month ago (3 children)

I suppose cosmic horror elder gods like Cthulhu and such are not all that far removed from the idea of a black hole. Particularly the ones that are less involved with Earth than Cthulhu is. Nobody is ramming a black hole with a fishing boat. But the early writing on them was done at about the same time as a lot of the foundational theoretical work on black holes (not the earliest stuff but I can believe that the writers didn't know about it)

[–] Sergio@lemmy.world 0 points 1 month ago

Yeah, Azathoth fits the bill in many ways.

[–] pressanykeynow@lemmy.world 0 points 1 month ago

If I remember Lovecraft correctly the whole idea was that human mind can't comprehend such things. And black holes fit very nicely.

[–] Natanael@infosec.pub 0 points 1 month ago (1 children)

Also, extremely pedantic note - black holes were predicted by looking at what happens in the math at extreme densities, long before black holes were actually observed in space

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[–] t_berium@lemmy.world 0 points 1 month ago (2 children)

Now get this: some scientists think black holes might have hair.

[–] MagicShel@lemmy.zip 0 points 1 month ago

Everything was hairy back in the 70's.

[–] SkaveRat@discuss.tchncs.de 0 points 1 month ago

But can you comb it all into the same direction?

[–] omniman@piefed.zip 0 points 1 month ago

What if black wholes are just pussy whole for our universe , plants are overies and we are the seeds . Some of us die because our mom took contractive pills

[–] Shareni@programming.dev 0 points 1 month ago* (last edited 1 month ago) (1 children)
[–] Walk_blesseD@piefed.blahaj.zone 0 points 1 month ago (1 children)

The Beast and his armies shall rise from the pit and make war against God.

[–] Shareni@programming.dev 0 points 1 month ago (1 children)
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[–] Kolanaki@pawb.social 0 points 1 month ago (1 children)

Our hopes and expectations == Black holes and revelations.

[–] SomethingBurger@jlai.lu 0 points 1 month ago (1 children)

And the superstars sucked into the supermassive

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[–] ThatGuy46475@lemmy.world 0 points 1 month ago (2 children)

The CW flash can escape from a black hole

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[–] 13igTyme@lemmy.world 0 points 1 month ago

Just FYI Superman has survived a black hole because the plot demanded it.

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