The Closest Black Hole Isn't as Far as You'd Like
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- Опубликовано: 6 сен 2024
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Where is the closest black hole to Earth? Well, they're pretty hard to find, so the record-holder keeps getting updated. Currently, it's an unassuming black hole called Gaia BH1. But research has hinted at several black holes that might be 10x closer.
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I miss scishow space. Reid makes videos interesting as he has a certain way of saying things with excitement and intrigue
I agree. However, PBS Spacetime is a great alternative.
Man I didn't even realise Scishow space ended. That sucks
I agree.
@@Terrik240 I loved BPS Spacetime, but at some point I feel like the content became harder to understand. Now I feel too dumb to watch it XD
What happened to it?
Fun fact: based on star formation models and the relative frequency of black hole-forming stars, the closest black hole is probably only something around 35 light years away or so. Not that there's any way we could possibly detect it any time soon, but we know that something is probably there. The statistical chance of no black holes being within 50 LY of us is only 13%, and only 0.03% for 80 LY.
(source: I led a small team doing a population study of the solar neighborhood to estimate how common neutron stars and black holes are.)
So your source is yourself? I don't think that's how sourcing works.
@@djksfhakhaks Probably not the best source, but I can piece together most of the research for you:
The minimum mass to form a black hole system is something in the vicinity of 20-30 solar masses (there's no strict cutoff point) (see Fryer 1999 in the ApJ) which according to the initial mass function fairly well-established above 1 solar mass to be about (star mass in solar masses) ^ minus 2.35. Integrated from 20 or 30-100 solar masses this is about 0.6-1% of all stars. The stellar density in our local solar neighborhood is approximately 0.004 stars per cubic LY, so a simplified assumed density of black holes would be about 0.000024-0.00004 SMBHs per cubic LY. For a sphere with a radius of 35 LY (total volume 1.8E+5 cubic LY) that's something between 4 and 7 assumed SMBHs in that volume- even larger than I said above.
However, black holes don't follow the same kinematic properties as main-sequence stars. Supernovae are known to cause 'natal kicks' of often several hundred km/s in neutron stars (googling "high velocity neutron stars" will turn up a NASA APOD page discussing the matter) and the same phenomenon has been modeled happening in black holes as well. This causes disproportionately few black holes to end up in the milky way's thin disk as in the halo or even ejected from the galaxy altogether. This culls the population of modeled SMBHes in the solar neighborhood down by several factors, and the geometry isn't trivial to explain here but it ends up spreading them out by a factor of 5-10- which takes you to a very approximated assumed density of black holes in the solar neighborhood such that the closest would be approximately 35 LY away or so.
@@aperson1 mic drop!
hey @@aperson1, genuine question. Given that there is still life on earth, isn’t it safe to assume that no black holes were formed within a radius of 30 light years of earth in the last 4 billion years?
@@karma-fy8ci It's a bit difficult to quantify, because the exact effects of a supernova on life on earth are not fully known (I know not all supernovae make black holes, but I'll circle around to that later). Of course it would be quite bad for land life and surface dwellers, but on the other hand 90% of the history of life on earth was small single-celled organisms that left very little fossil trace. I can say with decent confidence that we have never had a supernova within 10 parsecs/30 LY of earth since the Cambrian explosion, since that definitely would have turned up in the fossil record.
Before that, mass extinctions are not very well documented, and so we wouldn't really know if there was, for example, some period 3 billion years ago where 90% of all life died for an unknown reason. (We only know about the oxygen catastrophe because of the direct effect the oxygen itself had on geology, and whatever effect it might've had on life at the time is only inferred)
Coming at it from a different angle, if you take the modern rate of supernovae happening around Earth, the chances are quite slim that a supernova would have ever happened so close in Earth's history, with an extrapolated rate of about 1 every 20-25 billion years. However, the Milky Way has gone through some occasional short bursts of super active star formation, and that would cause a massive spike in supernova frequency in Earth's past that we can't really account for just looking at the normal present-day rate. Still, some studies accounting for this only estimate a
My takeaway is that I need several coordinated science teams to locate the socks missing from my laundry. Detecting gravitational lensing alone won't work.
There also must be some wierd gravitational distortions in my laundry room. My socks also keep missing.
Sock Holes?
Check around the barrel of your washing machine if you can. Everyone always blames the dryer if there's not a match for every sock, but how often do you count how many socks you put into the washing machine and then take out to put in the dryer?
Did you try doing it? How can you tell if you didn't try? 😂
@@2l84t AKA that rubber flap thingy that eats up socks and hides them well.
It is really hard to fall into a black hole, you are more likely to just orbit it. Just like we orbit the giant thermonuclear explosion at only a few light minutes away.
And a stellar mass black hole wouldn't change the orbit of any of the planets in our solar system any more than a large star at the same distance would. So as long as it stays more than a few lightyears away. we should be fine.
You're right. I'd like it to be much closer, actually.
Unlimited trash can
There is a theory that the not-yet-discovered Planet 9 is actually a blackhole. That would be cool!
@@samuela-aegisdottir That theory is not considered credible to most astronomers (me included). Avi Loeb, the astronomer who popularized that, is known for making outlandish claims to get attention from the media and most researchers don't appreciate it. He's also the one who proposed 1I/'Oumuamua was an alien spacecraft, and that an interstellar meteor made of 'alien materials' fell near Indonesia in 2014.
"It's not even in our solar system" is not the reassurance I was hoping for.
It should be.
Black holes are not the galactic hoovers sci fi often makes them out to be. A stellar mass black hole acts for all intents and purposes exactly like a star, except for the giving off light thing. Yes, it has an event horizon, from which nothing, not even light, can escape. But the radius of that area, the Schwarzschild radius, is much, much smaller than the radius of the star before it went nova. For a star 100 times the mass of our sun, the black hole remnant would have a Schwarzschild radius of less than 300 km. So where a star burns you to a crisp if you get too close, its black hole remainder lets you get a lot closer before it kills you, you just won't see it coming. You will notice its gravitational pull and Hawking radiation though, from at least a light year away. At which point you will are.. well, about a light year of distance away before you are in any danger.
In short, normal black holes have no more effect on us, than a large star at that same distance. As long as they stay out of our solar system, we'll be fine.
If you need something to worry about, start looking for pulsars aimed straight at us or fast spinning super-massive black holes, or for that matter the red giant stars that are about to become black holes, because the radiation wave coming off a nearby super nova is a lot scarier than the black hole it will leave behind.
@@Hugh.Manatee Thank you. Both for the clarification and the generous helping of other unknown horrors to ponder. ;)
@@magnushultgrenhtc Someone else corrected me on the Hawking radiation. The larger the black hole, the less radiation it emits. Apparently a stellar mass black hole gives off less radiation than your kitchen microwave. So you'll only notice the gravity.
@@Hugh.Manatee Stellar mass black holes give off so little hawking radiation that even when they're not feeding they're gaining mass from the background microwave radiation, starlight, etc falling on them and won't start to shrink until the universe is a much colder place in the astronomically far distant future. It's an exponential curve that only really spikes when they're much, much smaller than a planet.
A few light years away might be an issue as it has the mass of a large star.
the closest black hole is much further away than I'd like
yeah, if we ever get the tech to send a probe to our neighbours with the flight time on the scale of idk a few centuries , it'd be really, really cool if we could have a black hole to study too!
There is a theory that the not-yet-discovered Planet 9 is actually a blackhole. That would be cool!
@@samuela-aegisdottir Fraiser Cain sais if it were a black hole it would be so tiny, almost impossible to detect
the sun are moving thought the local "hole" vreated by several supernova so a black hole or several might be nearby in 50 year radious -shure the astromers realise this but wont talk about it
@@LiviuGelea it would be somewhere between the size of an apple and a basketball if we take the estimated mass of planet 9 in account. Try finding something so tiny and probably dark in the outer regions of our solar system!
You should do a collab with Dr Becky sometime, she's an astrophysicist out of the UK and a great presenter on black holes/astronomical objects. She just put out a video on the mass gap between stellar mass and supermassive black holes that is really interesting 🌟
I enjoy her and Anton Petrov, who does daily science videos, most of which are on astrophysics.
My klepto cat steals my socks and puts them in her favourite box, leading to the question: Do the socks actually exist if no one opens the box to observe them?
hi
The sun could be a black hole and it wouldn't "suck" us in. We'd just continue orbiting it. Mass is mass is mass.
depends on tidal forces and decay, remember the black hole is spinning fast, VERY fast.
@@abloogywoogywoo The sun is too far away for spin to matter. Tidal forces will be largely unchanged, and Hawking radiation is comically smaller than the CMB.
if our distance from it were the same as our distance from the sun it would, wouldn't it? We'd be behind the event horizon, depending on the size of the thing, no?
@@candyh4284 no we wouldn't bro the schwarzschild radius would be much smaller than the sun itself lol remember that it's not phoenix a it's the sun
Black holes are not so dangerous as they look like. They are not vacuum cleaners. Their gravity is the same as a gravity of a star (of the same mass).
Well yeah, but it's the psychological factor - they have the potential to "creep up" on you. We know of any typical stellar objects heading our way and how long it will approximately take them to get close. A rogue black hole on the other hand could be in the neighbourhood and no one would notice until it was close enough to seriously change trajectories of nearby bodies.
@@Fossil_Frank Except we would notice the gravitational effects on other bodies in the system. We'd kind of notice if Pluto suddenly flung out of the system. A black hole can't just creep up on your out of nowhere. They aren't what sci-fi makes them out to be...but if a stellar mass just rolls into your system...you notice it.
@@Huebz Dude, I've already said it before, for us to see those kinds of effects means it's already creeped up on us. A typical stellar mass BH would already be in the vicinity of the Oort Cloud, flinging an absurd amount of debris into the inner Solar System and pertrubing the orbits of all outer planets, before we could hope to notice. Compare that with Gliese 710, which is over 60 LY away and we've known for a long time, that it'll likely enter the Solar System - how is this not "creeping up"? No one's saying a BH would one day just appear near Earth out of the blue...
Exactly, a stellar mass black hole was a star that had even more mass than the black hole has. It could hypothetically be even closer than the Alpha Centauri System, and it wouldn't be a problem for us unless it's heading straight towards the Solar System.
Yeah, I've run a number of simulations of stellar black holes through the inner Solar System in US2, and sometimes Earth lucks out with almost no orbital change, while one or two other planets usually get flung out entirely. As far as perturbing orbits, a lot depends on the exact angle and speed of the black hole relative to the plane of the Solar System, as well as where each planet is at in it's orbit at the time it passes through.
I found about twenty socks under my bed and more pushed under the couch. The dog steals them and chews them in half, and then hides the remains. Brand new socks preferred.
Maybe check under the kitchen cabinet for the unaccounted-for dark matter which appears to be so curiously absent from our immediate neighborhood?
Do you think there are giant cosmic sized dogs that chew up matter and hide it
@@SoulDelSol That would explain how we can't find all that missing matter wouldn't it? It's probably under the sofa or buried in the back yard where the azaleas are messed up. Again.
Sounds like you need an awesome sock subscription! :D
Welp, looks like it's time to take Ol' Yeller out back.
Considering the true vastness of space, 1500 ly is basically nothing, so you're right. It's way closer than I'd like. It's even worse when you realize there's probably smaller closer harder to see ones...
"considering the true vastness of space" means nothing when you're not collecting data or going there. Something being in our "galactic backyard" has zero effect on our planet.
Why is that worse? Or why is the one at 1500 light years scary? The giant star Canopus is 300 lightyears away, so 5 times closer and about the same mass.
Do you know how close you have to get to Gaia BH1 before you go beyond the event horizon? 30 km... not light years, not millions of km, 30 km, that's about 10 times the length of the National Mall, for Americans... Do you know how close you have to get to Canopus, before the heat turns you into a cloud of ionised gas? About 50 million km. That's a whole f#ckload in freedom units.
Given how hard dormant black holes are to spot, the surprise isn’t that there’s one close to us, it’s that we *identified* one close to us.
I passionately hate the term 'dormant' black hole, because of how it plays into this public fear of black holes.
Other than that, yeah, you're right.
Wow! What a coincidence that Gaia BH1 was found with the Gaia telescope! What are the chances of that happening? It's truly a crazy cosmos we live in. 😉
It's almost like they named it after the sensor that detected it...
A black hole with mass equal to the particles involved in even the most powerful excelerator collision would have a radius so tiny that it would be nearly a plank length and would evaporate extremely quick. The energetic particles produced in the resulting explosion might be destructive locally but the planet would be just fine.
intro "huge black hole"
outro "mini black hole"
If it were the other way round, this clip would be X-rated.
Everyone gangsta when Gaia BH1 starts hurdlinh towards the Oort Cloud
😮😮😮
Even at light speed, it would take well over 1000 years to reach us. But essentially all known astronomical objects move at _far_ less than light speed relative to us. So it would take at least 1 million years. So nothing to worry about.
Keep your friends close, enemies closer, but keep the black holes far away from me, please.
If the LHC created a black hole it wouldn't be a problem for three reasons.
1. LHC is colliding very small amounts of matter. If you were to crush a car down into a black hole it would be smaller than a proton. How small would one made from a few million atoms be?
2. Gravity. The gravity of the resulting black hole would be the same as the particles that made it. Almost nothing.
3. Hawking radiation. The smaller the black hole the quicker it "evaporates" from Hawking radiation. At that size it would be instantaneous.
If you've actually found any black hole, it's not harder than finding missing socks in the laundry. Those have gone to another dimension.
Ehh, it's about 15 minutes out in my Diamondback Explorer
Be careful out there in the black CMDR, don't want to need to call one of us rats out!
Doom Spiral is MUCH better terminology than accretion disk.
Well, the Large Hadron Collider does generate miniature black holes as does cosmic and solar radiation in our upper atmosphere, they just evaporate before anything could fall into their event horizon simply because they are so small and comparatively speaking, there's a lot of space between subatomic particles.
Dr Becky brought this week maybe the first intermediate black hole is found now, the first of its kind ? We are missing all Types between stellar (small) and Ultramassiv (very large) so far.
Supposedly there is an intermediate black hole inside of a galaxy within the "great attractor" curious how big they can get from merging and what effects it has on the surrounding galaxy clusters
I'm loving the bright and patterned clothes you guys are wearing more often now. 🥰😘
I have a micro black hole in my wallet. Everytime I want to pay, I have much less money than expected. My girlfriend and my roomate convinced my, that there is a micro black hole in my wallet. There you have it. The real closest black hole. And there are 3 witnesses.
Naaaaah ....
You can't blame astronomic incidents for your financial situation.
@fajaradi1223 why not? I decided that I'm going to!
@@rivercrow8988 Yeah, Better blaming comological incidents than your girlfirend xD
Sounds like you have 2 black holes there my friend.. ;-)
You should put it in your toilet or trash can to save waste money
Yes, Opera is a useful browser, but what about all the controversies?
They are?
Looking at the sky and seeing stars ❌️
Looking at the sky and finding cosmic horrors ✅️
Uh oh, SciShow with an Opera sponsorship?
Why not?
@@samstromberg5593 Spyware
What is wrong with Opera?
@@IchorX China.
@@HowellQ Gonna have to be a little more specific than that, mate
These Gaia BHs are the subject of my past two summer’s research project :)
Your duet at the end, perfect! Is it a duet when it’s music? I dunno but that’s what I’m calling it
00:00: Concerns arose about the Large Hadron Collider creating a black hole.
00:35: Space's vastness makes nearby black holes seem deceptively close.
01:08: Identifying black holes is challenging due to their invisibility.
02:33: Gaia BH1 is the closest confirmed black hole at 1,500 light-years away.
03:12: Gaia spacecraft helped discover Gaia BH1 by tracking star movements.
04:01: Ground-based telescopes confirmed Gaia BH1's existence through light analysis.
05:47: Gaia BH1 is a dormant black hole, making it harder to detect.
06:54: Astronomers are searching for even closer black holes in the Hyades cluster.
08:02: Gravitational microlensing could help find dormant black holes, but challenges remain.
I wish the black hole was closer. Studying one up close would likely lead to huge discoveries in physics.
Over 3,000 years in the best case scenario is a little too long to wait for the data imo.
So what was found in HR6819 instead???
Originally they thought that one of the two giant blue stars there moves around an invisible object. Later it turned out that its spectrum was misinterpreted, that movement isn't actually there.
It's not that far away. It's a similar distance from us as Alnilam (1,344 lya) in Orion's Belt, which we can see with the naked eye...
I guess they would'a mentioned if we were getting closer to it. Right??
That’s not how black holes work
It's not hard to look astronomical data up. And such data usually includes velocity relative to us.
@@bjornfeuerbacher5514 it was written in jest.
@@garrett6064 I don't like jokes implying that scientists are hiding the truth from the public.
@bjornfeuerbacher5514 some food for thought. 1) I don't care about your likes/dislikes. 2) these guys are not scientists, they're a RUclips channel. 3) Scientists tell half truths and make grandiose claims all the time to get papers published and secure funding.
Love this type of content. Keep it up sci show team!
You should make a video on how J1407b isn’t actually a planet or a “super saturn”, it’s a brown dwarf. You could discuss the importance of scientific communication, accurate media coverage, and how misinformation like this gets so widely spread.
Sponsored by opera? You guys are aware it was recently acquired by a chinese giant Kunlun (bought 75%+ of opera's shares), so all claims of privacy and users first approach are... Hard to believe, right?
it's not recent, it's been owned by a chinese consortium since 2016. secondly, belief is for children, facts and evidence are all that matter. almost all popular browsers collect data, the websites you visit like youtube scape whatever they can, your phone tracks you and your habits...which is FAR more worrisome than what a browser can do. the only way to have total privacy in this modern world is to become a cash only hermit off grid. that being the case you SHOULD take a critical look at what a browser or anything else does can affect you in some negative way...and collecting data is neither positive nor negative. it's just data, are they going to send a chinese hit squad after me or something? what EXACTLY are you even scared of?
never got that with all the 'privacy' concerns. exactly what people expect to happen, internet police raid you? no, you get served more directed ads if you see ads at all. algos for sites like yt start prompting more relevant videos based on your viewing. search engines try to figure out exactly what you're looking for rather than just a broad spectrum general search when terms could have multiple end points that vary significantly. yeah, they're trying to sell you stuff...OOOH scary. ffs.
I'll just quickly total up all the times my data has been compromised by American comapnies insufficencies and nefarious, unregulated, or rapacious business practices, and weigh that against the same for CCP operations... and... oh dear!
Bless sponsorblock
Welp. Can't use opera anymore.
They were reaquired by their original founder. I just looked it up. They are headquartered in Norway.
"The Closest Black Hole Isn't as Far as You'd Like"
IDK...1,500 LY is plenty far away. In regards to topics like this...we really need to drop the whole "cosmologically speaking, it's right in our back yard!" when that just does not matter at all. Having something so "close" is useful for studying and literally nothing else when you consider we don't even have a concept on dealing with bodies within our own solar system.
So what I am hearing is the title of Closest Black Hole on Record is up for grabs. the LHC won't make one, but if I can just tune my Gravity Compactor 9000 properly, it should do the job; and then you can have a black hole within Earth's Orbit :D
Mad Scientist, or Mad Engineer? ;)
Looked in my backyard , nothing, zilch, phew thank goodness ,unless you count my shed !
Watching the mass of metals in star systems, where are all the planets and stuff, I wonder, where are all the black holes made from collisions of neutron stars, which gave us elements beyond the iron?
It would have been great if you had shown us where the black hole is in relationship to the rest of our spiral galaxy. Is it in our spiral arm of the galax or is it in the center of the galaxy or another spiral arm?
Black Hole is Plasmoid and Plasmoid is Black Hole. There are many videos on it.
0:34 Oh don't get me started on my imagination's physics breaking stars thousands or even quadrillions of times larger than galaxies. Or even the Rock Giants, which are essentially Rocky Planets the size of Gas giants. Oh and the many thousands of fictional Planets and star systems.
Never had a distance preference in my mind for the nearest black hole.
I wish it was a lot closer, to be fair.
I saw this question posed yesterday. “ how does a black hole influence other objects gravitationally, beyond the event horizon, if gravity moves at the speed of light?” .
Finally, someone with a proper hair style doing a video. This is how grown men should look like Hank!
ruclips.net/video/cDQZXvplXKA/видео.html
Gravity's a distortion of spacetime, not an energy wave. it propagates at the speed of light just because speed of light is the max allowed speed in our universe - think speed of sound in solids - when you do something physical to a long metal rod, the effects of that something can move up it only with the speed of sound in steel and no faster.
Any microscopic black hole would emit so much Hawking radiation that normal matter around it couldn't get in. The LHC didn't have enough power to generate a microscopic black hole.
An inch closer
Or a foot closer? Or an arm closer? Or a tounge closer?
Definitely 4ever
Great shirt.
"With a little bit of luck, that record might be broken" Sir... no.
I really like the mid-roll ads, I know they are needed, and you have made them as high quality as Sci Show itself. I also like your lineup of what you advertise. Patron here, best wishes keeping up the financial end of making quality Science content.
They feel lazy & uninspired, just like ads on TV instead of a RUclips channel that are supposed to feel "more relatable" instead of corporate content.
Also, they're not even "high-quality", unless you count regular animations. Even then, just check the human genome video from a week ago. The audio was literally cut mid-dialouge.
@@peterchung2262i actually prefer yt channels doing ad transitions as well. its extra effort, which is nice to know that the content i watched does indeed have effort put into it instead of just poorly thought out brainrot slop of a video
CERN: It wasn't luck. It was science. Don't attribute something to luck that can be explained by science.
love the shirt, very nice!
Would it be possible for the gaia black hole to be holding a similar mass that was before turning into a black hole. I don't really study these but from what I remember about masses in class, the larger mass attracts the smaller one. So if it held the same mass as before while being in a binary system, and the orbit was incredibly stable. Then the orbit around each other should hold? Which if our star was to suddenly turn into a black hole with the same mass, I would expect our orbits around the star to continue to hold. It would be that we would have no light anymore after about 8 mins when the last of the light would reach us.
Even if Hyades has black holes, it's just fine. All of this is fine. Black holes aren't supernovae, that can pop into existence or suddenly just do something to us. If it's there, it has BEEN there a lot longer than we've been around, and well, last time I looked, we're doing just fine. Let's try to still be HERE when/if something like that ever comes to pass.
So...why is it "not as far as I'd like?" Shouldn't we be coldly scientific instead of sensational on this?
Thats unless asteroid mass primordial black holes or planck relics are a thing- those would definitely be eating our socks
With a lot of luck is not how I'd describe breaking the record for the closest black hole!
That said, it might be how I'd describe detecting them!
We should go there.
Even if CERN made a black hole, it would only have the mass of the things that went into it. Would that really be a danger? And wouldn't it also evaporate really fast?
And cosmic rays bombard the atmosphere at far higher energies than any collider within the next 50 years could ever reach.
If particle collisions could make Earth destroying blackholes, they'd have done so by now. They haven't, so they probably couldn't.
Yeah, according to current models, a microscopic black hole like that would evaporate almost instantly. What's more, if the collider can make them, then we pretty much know for sure they're harmless, since the same kind of processes happen in the upper parts of our atmosphere and would logically also be able to produce such objects - since we're still here then either these black holes can't be made this way, or they evaporate instantly.
Wait..ok so the Milky Way Galaxy has a black hole that is in the center - a super massive black hole. Alpha Centauri also has one too, which mean that technically the closest black hole is...4 light years away, not 1500? Or am I missing something?
Are you confusing Alpha Centauri with Andromeda? Alpha Centauri is a star system, and it doesn't have a black hole.
They were worried it would create a TINY black hole
I'm curious, have they ever measured any mini-black holes at the LHC? I mean, they would evaporate almost instantly, being maybe the diameter of a few atoms at most, but have they been measured? I know it was theorized that they ought to be created by LHC, hence the whole overreaction scare, just never heard whether or not they've actually been observed.
few atom is massive. At best it's on the range of Planck length. Which of course we haven't had any way to measure those.
Black holes hiding in your backyard? More likely than you think!
Statistically a stellar mass BH is within 50-100 light years of the solar system.
FYI: for humans to get to alpha centari it would take approximately 20,000 years
Nobody tell John, he won’t like this
Well, the thing about a black hole - its main distinguishing feature - is it's black. And the thing about space, the colour of space, your basic space colour, is black. So how are you supposed to see them?
ok, we need to see these things closer, someone call Mcconaughey!
I am perfectly fine with those blackholes in the locations they are.
What are the 3 arrows in the thumbnail pointing to?
Here's how I visualize the non-dangerous singularities, "black holes" that a particle accelerator could make. IDK if it's fully accurate, as I'd have to delve into the math in a way I currently am not up to, but it's at least close enough, and should be soothing for anyone with anxiety about it.
1st, a regular black hole:
imagine a ball. the ball is SO BIG that it makes the tablecloth it's on wrap _all the way_ around it.
the pinchpoint of that tablecloth around that massive ball is the singularity of a black hole.
the mass of the ball is still there, in space, just on the other side of the singularity, and it's still pulling with all that gravity.
Particle Accelerator Black Holes aren't dangerous (unless you're in the path of the particle, which is dangerous regardless, ask Anatoli Bugorski).
imagine a tiny dot travelling So Fast, with Such Force, hitting another going the other direction, their combined power so great that they make the local space make the same shape as the Ball above did.
they smack space so hard that it folds around to make a pinch point and a pocket: a singularity.
but without a giant ball of mass there to *hold it* in that shape, the fabric of space there just snaps back to being flat instantly. no harm, no foul, unable to exist for more than an instant and never having the Pull of gravity that makes black holes so dangerous.
the outside universe would age 4 years, but if you were going near the speed of light you would barely age at all. In fact, if you were to accelerate at 1g constantly, you can traverse the entire visible Universe in about 55 years--the outside universe will have aged 40 billion years but you would have only aged 55 years since time slows down for you relative to other objects the faster you go.
That’s not how that works.
@@aufstieg6948 That's exactly how it works, search google for "accelerate 1g travel across visible universe" (can't post links here). It's simple calculations from general relativity, there's no disputing it if you believe in relativity.
My favorite space comparison is that while the events of dune take place. The 20k year history plus the extra couple thousand years for the god emperor reign. Voyager one isn’t even out of the Oort Cloud yet. The icy backyard of our solar system where comets and the like chill. Mind you dune takes place in other systems far away and voyager is already moving at 38,000 mph or just under 5 earth diameters every hour
Voyager hasn't even reached the inner boundary of the Oort cloud. By far.
@@bjornfeuerbacher5514 yea I think it still has like 300 or so years to get there
Scientists have made the hottest known temperature in the galaxy already, I'm surprised nobody's managed to make a mini black hole. But it makes sense, you can't just flip a switch to add more mass.
Mass is not the problem. Well, alright, it is from a practical sense, but not nearly as much as packing that mass densely enough. Consider, that in order to make the Earth a black hole, you'd need to somehow squeeze it into a size smaller than a human hand. Doing this on any human-scale object is pointless, even if we could, the sizes involved would become meaningless (as in, less than planck length). Even the entire Mt. Everest would get you a BH much smaller than an electron (and it would evaporate under a nanosecond).
I'd like there to be at least 3 AU, how do you think you can judge what I'd like
What's the difference between a doomspiral and a deathspiral?
Props to @DropoutComedy for letting you use their set
Brilliant. . Merci 👍👍
The LHC swallowed my socks!
cool video thanks
Hopefully, just hear me out, the fact that the solar system has NOT been consumed by a blackhole (yet) means that our solar system isn't close enough to a blackhole to be at risk of being affected by one
Don’t forget the black hole in my dryer that makes my socks disappear….
A black whole slowing the earth is the least of my problems.
theres no way a black hole can be "as far as i'd like" because my deathwish is to die falling into one, for science
When it turns out the star next to the black hole isn't a star at all but a white hole
Piano!
Gaia BH1 is not a Black Hole. It's a giant spaceship using a Black Hole Cloaking System. It's actually on it's way to Earth but disguising it's advance. Just you wait and see.
Those dumb aliens. Rather than making themselves black and travelling at a snail's pace (what we detected has been there over 1500 years ago), they could have invested in FTL and have gotten here completely unnoticed, since they'd arrive faster than any information allowing detection.
Massive black hole energy? Eh? Anybody? How do we harness that?
I miss my Windows Phone, since It's much smother and fluid than my iPhone
Love the videos but I hate the abrupt ad reads.
Hi Reid!
God bless hank green isnt here, that man haunts me, follows me, invades my dreams, terrifying that man is
"Closer than you think?". How do you know what I think? Some people even believe that Planet 9 may be a black hole.
Brian Cox: Wait... I thought it was called Large Hard-on Collider.... ;-)
Source... Brian Cox itself... I ear him say that too many times... ;-)
I was wondering if I missed a new discovery, but nope he's talking about the one I already knew of and not the slightest bit worried about.
@SciShow Please please please stop putting ads abruptly in the middle of your videos. It’s an awful experience. I get it you need money but this isn’t the right way.