KareemAbdulJabroni
108311
1167
28
#420blazar
https://www.indy100.com/science-tech/reclassified-galaxy-black-hole-earth-2659654300
Mar 28, 2023 7:06 AM
KareemAbdulJabroni
108311
1167
28
#420blazar
https://www.indy100.com/science-tech/reclassified-galaxy-black-hole-earth-2659654300
LespritDeLescalier22
Are they saying I shouldn’t renew my vehicles extended warranty?
TCGView
Chances are there are many black holes pointed directly at earth. Just different distances away.
myproudburner
Kind of unrelated, but this post has 16 downvotes at present.
sowasvonsowas
That being said... https://www.youtube.com/watch?v=3exQLmJBoAY
DeakVanNyke
" 657 mil light years away " that would be like a fart in the wind.
beeeeeeerkaaaaa
I'm not alarmed as I don't know what it means. Also, i won't live that long so all good.
HJVN
How can a round object point at anything? Well, i guess it can point outward, so... But still!
mikeatike
The relativistic jets of an active black hole are at a right angle to the accretion disk.
Absent
Can't wait for a black hole/supernova to isekai us all into a magical world. I just hope I'm a majestic creature, and not a toilet slime. /s
evilspyre
Definitely going to be a toilet slime for making that comment.
mikeatike
#1 I don't want to alarm you, but SagA* is also a supermassive black hole and it is MUCH closer.
fuckcats
pees eat us
StewedTomaters
This is below the turtle, or...?
megatausj11
Finally
pip1
Slaanesh?
Redshadow09
Eye of Terror
DocNitro
*ominous latin chanting* Canis Domus Vitus Est! Canis Domus Vitus Est!
HaroldTheCleverSheep
Welp. Time to listen to some Muse.
qtRaven
Love their music. Supermassive Black Hole has such a good beat.
hadan8088
I'm going to need a banana for scale. Should I pay rent this month or will this black hole take care of it? /s
onecowboytoo
Will the snail still be in the tungsten ball when it gets here?
Provos
We looked into the void and it is looking back.
Imalwaysready
More like "we looked into the void & 99.9% of it is facing other directions, but, given infinity, something had to be pointed right at us."
NotTinyPancakes
thew void is hungry and wants chicken...all of them
afatality
ive been staring for 19 years. finally a return message
sassort5
You have been left on "seen".
PutItInNeutral
We are on a mote of dust adrift in the void.
taurondir
When two galaxies collide do you like, call the Space Cops and exchange GPS coordinates ?
GuitarBobMonterey
We better get the wormhole fleet ready & ship-shape.
sowasvonsowas
Jupiter and Saturn, Oberon, Miranda, and Titania
Neptune, Titan, stars can frighten
Degarafarat
You stared into the void and now it's looking back.
BurlRavenscroft
Would being sucked into a black hole cause infinite pain or would I die quickly enough. Asking for a planet that needs holing.
Vollesnor
I really like that title, reminds me of futurama
AwesomeName
"Uncancel Firefly or the black hole will shoot!"
Stinkwrinkle
Do what the black hole wants!
insolentwerp
Subscribed
gryphoemia
shoot then
1LostPuppy
It's the protomolecule, its back.
sfrinlan
Goddamnit, Holden
burninator2
FishieStardust
I'm okay with this
AllHailTheMoose
I think the title is clickbait. I don't think a galaxy 600m lightyears away is a problem
FiftyShadesOfArugula
It changed direction towards us 600-ish mya. Might be a problem for a distant future land cephalopod or hymenopteran hive mind civilization.
AllHailTheMoose
I think we need to sort our own longevity out before we worry about this
ItsPhotoShoppedByMe
Dude WTF don't point your black hole at us!
Imalwaysready
BREAKING: Republicans have banned learning about this particularly pornographic cosmic feature in all Florida classrooms.
weidermeijer
Sometimes you have to pay extra for that.
Hueroc
"We don't want to alarm you, but we want to alarm you by making the meaningless orientation of a celestial body sound somehow threatening"
Imalwaysready
Science journalist more than the scientists, usually.
ImgurPlz
Bro, your Venus is rising and you have a strong mercury retrograde…
AllHailTheMoose
I don't understand. Is this dangerous to us? It's 600m lightyears away and doesn't mention a threat anywhere
Imalwaysready
It is not. Unless you are a Republican, because this may result in increased understanding of the cosmos and the dreaded E-word (education).
weidermeijer
I don’t think we know.
imainlinemaplesyrup
Stolen from @ColmCorbec above: /gallery/qWdCTHS/comment/2316157517
jaggcomputing5
Just a sensational headline.
Tajik
No it's not a threat, it's click bait.
cAPTNcAPSLOCK
Any radiation emitted from the BH would have arrived at the same time the light arrived here for the scientist to see. So, whatever is >
cAPTNcAPSLOCK
happening is happening right now. So, we are fine.
yoyo42
Until whoever aimed it presses the fire button, at least.
NoCapes
Don’t worry. Yavin’s still blocking the shot.
ENCHANTMEN
No. Clickbait gonna clickbait
kuscheck
That means that if it were capable of travelling at light speed, which it very much isn't, it would reach us in 600 million years.
kuscheck
Technically less than that, it changed direction towards us 600 million years ago, but it's so far away that we are only now able to see it.
AramilNeogi
If we can see it, it means the light is already here, so that 600 mil years at light speed would be about now. But yeah, still pretty far.
sarzaya
Don’t look up.....(wouldn’t see it anyways)
gandraw
Way too far away. GRBs are only dangerous if they come from our own galaxy.
AllHailTheMoose
Clickbait headline then?
Imalwaysready
And even then, from within 6,000ish ly or so. Our galaxy is 100,000ly across and only about a ~12,000ly space around us is risky for GRB.
SadToSay
Unsarcastically, this is actually great for me to hear because I always worried a GRB that was traveling for an eon would take us out.
onlyhalfghost
it still could, since the only warning we could ever possibly have is the arrival.
SadToSay
It could but the odds are greatly reduced if it has that limited a range of effectiveness given how focused they are
AttilaTheHungover
TIL black holes have orientation.
tinyfootprints
That kinda comes along with having a spin axis. ;)
Rubyrose99
Yeah but when they finally get to the point, nothing "matters".
SignificantAioli84
And preferred pronouns! Ha ha
number2commenter
It prefers males but honestly it's standards are low, so anything with matter is fine.
DrKonrad
Yeah but clearly they have no sense of orientation
CptRobotNinja
Black holes are so god damn cool. It's like physics trying to get into a club and the bouncer is like nah mate we do things different here
HoneyBadgersAreBadAsses
oh yeah, they are still a star....
kuscheck
A black hole is just like any other planet or sun, in that it has mass, is spherical, follows a trajectory and spins at a certain rate.
sVAMP
I do find the concept of a zero-dimensional singularity having attributes like spin weird though.. I guess it can't be a singularity
awildcharmander
*technically* we don't know that the black hole itself is spherical, but the event horizon is ;p
kuscheck
It just has so much more mass that it can't just hold a moon in orbit or attract meteorites like Earth, it can bend light.
kuscheck
If you tried to land on it, it would rip your molecules apart before you ever touched the surface.
WilliamKeith
In an appropriate reference frame, a black hole has mass, charge, angular momentum, and no other characteristics not derivable from these.
techymonkey
Any black hole with spin will have subsequent poles due to how matter enters the event horizon. I don't know what happens with no spin.
petresun
Can black holes exist without spin? I'm assuming no since they're dead starts with orbiting bodies so I assume theyd just follows suit.
SyrusDrake
Black holes *can* exist without spin (Schwarzschild or Reissner–Nordström types), but it's very unlikely they actually *do* exist in nature.
petresun
I'm thinking the only way that'd happen is if every stellar body, which is in its gravitational pull, would have to be heading straight 1/2
petresun
at the star(which is impossible) or some catastrophic event that halts said spin(very improbable). Any thoughts? 2/2
Paccc
Non-rotating black holes aren't really found in nature since the angular momentum of the source material is almost always non-zero
lostlittletimeonthis
Are non rotating BH found in labs?
Paccc
Lol I wish, I would love to study one, but even if we could create one it would disappear almost instantly due to hawking radiation
techymonkey
Right, but I can't rule out that one could possibly exist somewhere. The Universe is too big for me.
ArchMagos
Due to their nature, it would have to have perfectly 0 angular momentum. Every single atom would need to have a perfect counter >
techymonkey
I understand the mechanics and how unbelievably unlikely it is, but the Universe is just too big for me to absolutely rule it out.
ArchMagos
Any momentum at all would be multiplied significantly due to the singularty having a radius of 0. It's theoretically possible in the same >
Paccc
True, anything that's not expressly forbidden by the laws of physics must exist somewhere in an infinite universe
potshot
That's not true. Infinite size does not imply infinite permutations. And what's happening here is that while physics does not expressly(1)
ColmCorbec
So this could be the source of a GRB that hasn't hit us yet or the source of one that has hit is in our distance past?
rrlyrae
no, this is an AGN with relativistic jets that have apparently shifted. GRBs are individual supernovae or neutron-star mergers.
Imalwaysready
No where near. To damage the Earth, it would need to be within 6,000 light years. This is another galaxy entirely.
awildcharmander
We would have no way of knowing about GRBs that haven't hit us yet because they travel at the speed of light (being made of light and all)
DaMackies
It's 657 million lightyears away, whatever managed to reach us would probably not even be measurable or noticed.
MySushi
Doppler effect?
DoWGray
Doppler would have much less effect than just the radiation spreading over a much wider area, I suspect
Imalwaysready
Correct. We can detect GRB up to 7B ly away, but to actually cause any significant damage to us, this particular object would literally >
Imalwaysready
have to be 109,500 times closer than it is (around 6,000 ly to be any significant threat to Earth, where this is 657,000,000 ly away).
ProphetofEntropy
its to far away to be dangerous even with a GRB aimed right at us.
Imalwaysready
Don't know why the downvotes. You are correct.
ProphetofEntropy
cause its what people want to believe. so they ignore that the GRB would pretty much have to be in our galaxy to be dangerous on earth
Paccc
GRBs are still dangerous to Earth even at that distance because the blazar focuses the super high energy relativistic jets directly at us
ProphetofEntropy
fyi a GRB would have to be under 200k light years away to be dangerous on earth and thats with us being in the collimated part. this one is
ProphetofEntropy
2000 times that further away and still subject to the inverse square law. its "too far away"
ProphetofEntropy
whats the flux density going to be then?
ColmCorbec
3.5
BeardedViking
Not great, not terrible.
TheIceHorse
At 657 MLA — any GRB would take 657 million years to reach us and by the sounds of it, we don’t see any heading our way from it.
Chronomechanist
Sort of. Except we're seeing it 657m y in the past, so the GRB it released would have been 657m years ago. Luckily, it'll be far too weak.
Imalwaysready
Also, in terms of destructive ability, they dissipate within 10,000ly at most. So this thing is not a threat in the least.
AramilNeogi
If we can see it, that means anything lightspeed would have hit us already.
merelyadequategooglymoogly
Um, how do you propose to see something headed toward us at light speed?
Topi41
It could have sent a GRB 656.999 million years ago and we still wouldn’t see it coming…
TheIceHorse
GRBs are extremely bright radio sources. They’re also very narrow in focus. Satellite’s like Swift are likely to be off the barrel (1)
TheIceHorse
enough to detect it. We would also detect the initial event before gettimg blanketed in Gamma Rays. It should be noted this is how we (2)
TheIceHorse
detect GRBs already. Per Nasa, ‘Astronomers only detect a GRB when one of these jets happens to point almost directly toward Earth.’ Source:
Chereazi
I doubt it'll be an issue, if we can see the it's pointing at us and nothing happened it's doubtful anything still will. Probably too far...
FrogBotherer
Inverse square laws do be like that.
Imalwaysready
WAY too far. A burst would need to be within 6,000 light years to damage the Earth. This thing is 657 MILLION light years away.
merelyadequategooglymoogly
This. People talking about how it's 657 million light years away are missing the point that, if we're seeing it pointing at us, then it's >
merelyadequategooglymoogly
> been pointing at us for at least 657 million years, and anything that would happen as a result is already happening.
Imalwaysready
Also the point that, while we can detect such bursts up to 7B ly away, to actually damage us they need to be more like 6,000 ly away. This >
Imalwaysready
one is roughly 109,500 times farther away than it would have to be to actually hurt us in any way.
SpitMatt
Perhaps it has an IQ lowering effect, and we are seeing the effects in real time...
NuclearDeer
GRB?
DS9WasBetterThanTNG
Great Rarrier Beef
number2commenter
Giant roast beef
donottouchdonut
Great Britain
ColmCorbec
Gamma Ray Burst. Basically a death ray that some Black Holes spit out. We can't see them coming and they would literally cook the hemisphere
incubusiness
Gamma??
ColmCorbec
they hit in an instant with some of the more powerful ones. It's posited that a GRB caused a mass extinction event in our distant past.
Marsupialmessiah
The ice age following one is speculated that triggered the mass extinction event. Life was not "gamma fried". Otherwise we wouldnt be here
NuclearDeer
Shit, don't they travel pretty quick also?
DoseOfScience
Gamma rays are made of photons, so yes.
ApolloSierra
At the speed of light, so if a burst were to occur right now, it would affect Earth in 657 million years.
Omnimorph2112
So... What's my chances of becoming an incredible hulk? I'd also accept becoming a slightly impressive hulk if incredible is off the table.
ProbablyWrong524
One generally credible hulk coming right up.
SoraHjort
As well as explain why our local area in the galaxy has much lower ambient levels of hydrogen than is normal.
PolarHailStorm
As soon as Kojima hears about this we're getting another rewrite of Death Stranding 2