What Would Happen if a Black Hole Entered Our Solar System?

[@tabxtra7057]

I was starting to get a little worried about a black hole killing us, but once Simon started to list off all the other things that is much more likely to kill us. I felt so much better..!!

[@thunderspark1536]

Honestly us humans are quite lucky that something hasn't yet. Though we have had a very, very short history compared to the universe as a whole so it's not that likely either.

[@pakde8002]

I know it sounds selfless but anything outside my expected life expectancy is someone else's problem. Sorry kids.

[@thecommenternobodycaresabout]

@@pakde8002 You mean selfish. You are right though.

[@scienceunbound460]

Such a relief.

[@Wheezyp]

I think a quick little reset on humanity is kind of pretty overdue, i mean just look at the current state of us, yes a black hole or an ice age or the sun melts us or like even a large rock, similar to the ones took out the dinos yeah we need one of those 👽👾

[@cleverusername9369]

This channel might be my favorite version of Simon's narration. Feels like a mix of Mega Projects and Brain Blaze at rapid fire.

[@MrEpherium]

Business Blaze was the best

[@lazyartist1984]

As someone who's terrified of black holes, it's nice to watch videos like this, give my nightmares some fuel for how they wanna terrify me.

[@venera13]

It's interesting how many people get "galaxy" and "solar system" mixed up. When calling a solar system a galaxy is like calling a house a country.

[@lordcrayzar]

Especially for a supposed science channel.

[@bretp5601]

This channel has my favorite editing of any of your channels.

[@BrianPseivaD]

Everyone loves a decent black hole, this was a brilliant instalment, more like this please! Thanks Simon.

[@ThatWriterKevin]

Thanks!

[@Rich-fr2yv]

That's what she said

[@greg-op2jh]

@@Rich-fr2yv I was going to go there but you beat me to it.

[@loteanuadrian7555]

One thing to point out regarding moving the black hole with gravitational waves (or anything else). It would actually be more practical to move our solar system out of it’s way as it is less massive. Both are impossible in any foreseeable future.

[@sookendestroy1]

A lot of people dont realize but it's actually vanishingly tiny of a chance of a black hole consuming a planet, a solar system, star etc. It turns out it's actually really hard to "hit" a black hole, as the gravitational well of large objects tends to yeet objects at massive speeds into deep space, it's only when the two objects match speeds and rotations that they start slowly falling into the black hole for a ridiculously long time before being dusted. Most sci fi settings where "we got trapped in the black holes gravity" means they're already near the event horizon and or are actively trying to go into the black hole lol.

[@nickscurvy8635]

Indeed. Actually hitting a black hole is super difficult. Almost every possible path an object can take goes away from the event horizon unless it's a supermassive black hole. A supermassive black hole going through our solar system would definitely be a terrifying event.

[@iPad49]

Came here just to say that, the reality is kind of mentioned but not emphasised - black holes are just gravitational bodies like everything else, they never 'suck' and just tend to sling matter away. The size of the Oort Cloud is huge and the chances of anything yeeted hitting anything, let alone something not the Sun or Jupiter is very very slim. Though a supermassive blackhole would be interesting - it would just fling us - the whole Solar System somewhere.

[@That0Homeless0Guy]

Pretty sure if your path intersects that of a black hole you will get sucked straight in. Much like a meteor coliding with a planet.

[@nickscurvy8635]

@@That0Homeless0Guy it's much harder to intersect with a black hole due to the more extreme gradient it creates. Especially smaller black holes. It's much easier to fall into the event horizon of a supermassive black hole.

[@nickscurvy8635]

@@That0Homeless0Guy this video explains why it's difficult to actually fall into the event horizon. It is however really easy to get torn apart by the black hole. kzbin.info/www/bejne/g3q1hqGOhJmWZtk

[@fl00fydragon]

It's not irrelevant, in fact it's extremely important research. Finding how a system breaks also tells a lot of how the system works, moreover light black holes (kugelblitz black holes) that could be made via dyson swarm could be one of the best possible mobile energy sources that could be used for space colonization and interstellar travel.

[@mitchk6168]

“No, it’s a fuckin black hole init” the true British part of Simon coming out with the “init”

[@DeTofuKing]

I love when he says that we are "Fucked"

[@ACastillo_]

Just a few add ons: 1. The likelihood of this happening is so low it's negligible, it's practically impossible. 2. If a black hole was anywhere near us we'd know. 3. It's super fucking unlikely because of gravity and because space is vast and comparing the amount of stars and planets to the amount of black holes, black holes are relatively rare.

[@psmirage8584]

Something not mentioned in the video that is probably one of the highest probability scenarios is that as the black hole began ripping comets apart in the Oort cloud, the accretion disk forming would blast out waves of Gamma Radiation, that would quickly sterilize the Earth at that distance.

[@alukata9763]

Even in the best case scenario mankind would die. Heat isn't enough, plants, which are a crucial part of the food chain, do need sunlight to grow.

[@corypasner]

I think the title is incorrect on this video he seems to be using Solar System and Galaxy interchangeably it's really off putting

[@davidharris3728]

I was hoping you'd mention the sci fi short story A Pail of Air. After the earth is torn away by a 'dark star' one of the family's chores is collecting pails of oxygen off the ground and bring them into their shelter to be heated into gaseous form.

[@peachesrambo4037]

That was a good story, lame but good

[@MichieHoward]

Wow! Thanks for the nightmare fuel Simon and team!

[@DadJeff-jo7pm]

Very little of the matter pulled towards the Black Hole actually crosses the Event Horizon it enters the Accretion Disk. Spinning towards it but not crossing over.

[@jonnovember2136]

Blackhole is the vacuum cleaner of the universe... if it enters our solar system it would put us out of our misery and suffering of our transitory life... I love you all! 🌎💘💰

[@LeonardPC272]

a black hole entering the solar system would actually solve all my problems ....

[@huckleberries407]

The word "Galaxy" keeps getting used when I'm almost sure what you really mean is solar system.

[@patrickwilkerson1728]

There are many are in our galaxy. The Milky Way has a supermassive black hole at the center of it.

[@LocozillaYT]

Hehe, ya that maybe true BUT still no where near us if we're talking about "reachable" with today's technology

[@eddsson]

And well, Andromeda, local group etc. I'm guessing there's a few script hiccups.

[@King_DarkSide]

I can't imagine our galaxy, or any other for that matter, without one.

[@Naptosis]

You're so romantic! 😋

[@matthewhodgson7388]

Only small black hole would spaghettifie you. It seems counter initiative but it is true. Thanks for another great episode Simon and Kevin

[@misterlau5246]

Really? Why? Oh, intuitive, OK But he didn't say "only small black holes spaghettifies you". The core of the star is compressed in that small ball. The full black hole includes the horizon and that's way bigger. All black holes specially big ones, have that gravity incrementing exponentially (well, a factor) so it's much more pull than anything, much stronger one meter nearer, so it just.. Basically tear you to pulp and that's what it will be elongated 😬. But there's so much radiation if it is eating, and of course particles and little bits of rock and such at great speeds, anyway, that would convert you in... 😬Gory stuff.

[@chitster]

@@misterlau5246 they meant that only small black holes have a small enough event horizon that the tidal forces are much greater than a massive one, the massive one has a larger gravitational well but it's at a less steep gradient to a small one, in a small black hole the centre of mass is closer to the event horizon so it pulls harder at the edge of the event horizon

[@chitster]

This means that massive black holes don't Spaghettifie you until you pass the event horizon

[@misterlau5246]

@@chitster oh I see. So taking in account the faster rotation and the framedragging. Agreed

[@matthewhodgson7388]

Pluses the incredibly unlikely possibility that we would go through an Einstein Rosen bridge. But this would be incredibly unlikely

[@danielreuben1058]

I've mentioned before that my son is very much into outer space, and I like when I find videos on those topics to share with him. He's going to love this one. He already knows this stuff, but he will enjoy the humor that you use to present it. Knowledge and humor; two of the most important things in the universe.

[@sandybarnes887]

Does he like Dr Becky and Scott Manley?

[@maninthehills7134]

There's also the viral/scary video "Journey Into a Black Hole" by Deep Astronomy. Fun fact: you're at the event horizon precisely when a BH fills 1/3 of your 360-degree field of view

[@SlickTim9905]

I think my sister should be sent into space

[@labhusky3]

It's funny because a black hole entering our area is safer than a star of the same mass entering the area. A star will do all of the same things except you know, set things on fire while it's at it. It isn't the mass of a black hole that makes it special, it's the hard detection and impossible escape once you're on the "surface" of the thing. A star is much more dangerous on these scales.

[@Trag-zj2yo]

The psychology of those who enjoy fictional doomsday scenarios would make an interesting study

[@rastaboy_gamesnstuff7778]

I love the way Simon smiles when delivering bad news, just like Prof. Farnsworth. Simon for Farnsworth in the live action Futurama 👍🏻🤞

[@kevdev1272]

Another great video Simon, how about checking out the space void ??

[@ThatWriterKevin]

Go on....

[@lordcrayzar]

Do you mean Solar System? There are estimated millions of black holes in our galaxy. Cmon Simon!

[@TheSonshade]

I'm no spaceologist, but a black hole in your backyard is much worse than Uranus. Outta here like Pluto.

[@sagesheahan6732]

Here's an new idea for a TSoSF video: Can we or is there anyway to destroy a black hole?

[@jjmusicfordummies]

Seems like whoever titled this video has some misconceptions about galaxies, black holes, and solar systems. Simon talks about black holes getting close to earth, and there are already thousands of black holes in the galaxy, including one recently discovered to be less than 100 light-years from our planet!😅

[@shepardice3775]

Yeah they meant solar system clearly, I think the title is just wrong

[@ThatWriterKevin]

That was my bad. I had the title correct, but the filename was wrong, and somehow I never caught it

[@johnbennett1465]

@@ThatWriterKevin so fix it. Video titles can be changed. Still won't fix Simon's reading of it, but it avoids the embarrassment of making the channel look stupid to every new person it is recommended to.

[@markthebldr6834]

@@johnbennett1465 most people can forgive small mistakes and get over it.

[@jrmckim]

@John Bennett Mister, pull the panties out your @... opps..my bad that's your head up there.

[@Iamthelolrus]

There are alot in the galaxy already.

[@antonsimmons8519]

Yup XD countless of em

[@khuti007]

HAHAHAHAHA "Bad news, there is " lol..what a line delivered perfectly !!

[@dragon3085]

you keep saying galaxy when I think you mean to say solar system?

[@anonymousrex5207]

I have theorized that the only defense Earth will have against a black hole will be to load up all of Simon's YT content and send it into the black hole. This will great an information overload that will cause the black hole to vaporize and save us all.

[@VDxVicious]

Solar system* you're welcome bud

[@brianc8916]

I like the theory our universe is inside a black hole. When the star collapses into a blackhole, you'd have all that mass condense into something that could be described as a singularity, and the forces involved might liquify all matter inside to something akin to plasma. Black hole's radius is proportional to the mass that falls into it. So, from inside it would appear as if space is expanding and from the outside mass would be falling in. Also, lets take time, it slows down the closer to a black hole someone gets and might appear to completely freeze from observers watching that person fall in, but would time appear to slow down at all at any point into that person spaghettify? Probably not, and if you were already in a black hole, time would appear normal.

[@doriandavies5140]

There are 4 types of black holes, supermassive,stellar, intermediate and miniature (miniature being a popular possibility for Planet X)

[@RReese08]

I'm not an astrophysicist nor do I play one on TV, and I also admire Kevin's writing that he does for your different channels (Maybe he should have his own!). That said, your video leaves out a couple things: First, a black hole may be much, much closer to Earth than we may think. Some scientists seriously think that, because there is something out there that's slightly affecting the orbits of Uranus and Neptune, instead of the much sought-after Planet Nine that could be somewhere in or just beyond the Kuiper Belt, it may be a primordial black hole instead. Estimates put it at somewhere between the size of a football (aka soccer ball here in the US) and a beach ball, which would be just enough mass to produce the effects as described. But because this object is so small, it's virtually impossible to observe with the technology currently available. But here we are anyway. Secondly, our solar system is tilted about 60 degrees relative to the Galactic Plane, much like the windshield on an automobile. While the popular scenario has a black hole entering the solar system along the Plane of the Ecliptic (that's the plane that most of Earth and its fellow planets lie relative to the Sun), this wouldn't discount the possibility of a black hole approaching along the Galactic Plane and hitting our solar system like a fly hitting a windshield - except we'd be the fly. Especially if such a black hole hits the solar system near dead center at the Sun, then things would be much more spectacular viewing than one entering from beyond the Kuiper Belt. The Sun and black hole would spin around their common gravitational center, which would probably look like a giant disco strobe from Earth faster and faster as material from the Sun is drawn into its deadly cosmic partner. This would of course completely disrupt the solar system as some planets - namely Mercury - get swallowed up. Venus may or may not get eaten too. But just about everything from Earth on out will probably get spat out into interstellar space. You got that part right. If the solar system being annihilated by a black hole traveling along the Galactic Plane sounds improbable (outside of the very slim odds that such a thing would happen anyway in the first place), it was about five years ago that we were visited by an extra-solar object that followed about the same path - the object known as Oumuamua. So, if that can happen, so can almost anything else.

[@nickscurvy8635]

Only a small group of scientists postulated that a primordial black hole could in principle exist in the oort cloud. More commonly held and more likely is a ninth planet. But that's not even necessary to predict the orbits of the comets a planet is being used to predict. As time goes on without being able to find any sign of such a planet or body, the less likely it is that its out there.

[@nickscurvy8635]

Objects fly through the solar system way more often than every 5 years. Oumoamoa was the first we found. We know that thousands of such bodies have to be going through the solar system. Oumoamoa was one We got lucky enough to pick up on accident. It's discovery has indeed taught us where to look and what to look for to find these bodies. And we have, in the years since, found several interstellar visitors.

[@RReese08]

@@nickscurvy8635 I did say that I'm no astrophysicist. And I commented that *some scientists* think that there *may* be a primordial black hole on the very edge of our solar system. My comment did not imply or express anything else other than the possible existence of a PBH isn't a widely held scientific theory. As such, until more substantial proof is discovered, the idea of a PBH circling the Sun has to compete with other theories and studies that currently exist among the scientific community. The odds may be very, very small that this is possible, but there it is, and sometimes - but not often - less accepted theories occasionally do pan out when solid scientific evidence is there to support them.

[@nickscurvy8635]

@@RReese08 I'm just saying that you overstated the amount of credibility scientists give that proposition. When I first heard about it, I thought it was a really neat and exciting idea. And it is. But its highly unlikely. My intention wasn't to be hostile or anything. I do really think it's a cool idea. Imagine if we had a black hole that was close enough to send probes to one day. Alas, there's probably a more boring explanation.

[@RReese08]

@@nickscurvy8635 Well, I really am not an astrophysicist, so any mistakes in my comments are on me. Sorry if I seemed defensive myself.

[@reecedrury4145]

Simon, think you need to retitle the clip. Think you mean solar system not galaxy, are galaxy is already full of them....

[@Raees-Divitiae]

White hole review and wormhole review, please. We already have a prototype of wormholes, it just can't transfer matter...yet. The white hole concept makes sense, on paper. Please review these, as I love your channel.

[@Jkauppa]

they say there is already one, in the middle, empty as heck

[@ericswanson411]

The fact that I keep seeing this topic not only on here but in the news articles on my homepage irritates me. If a black hole was to even come close to our solar system, we would feel the effects of its gravitational pull. The entire solar system and surrounding solar systems would be destroyed long before it did enter the outer edges of the solar system.

[@dark7element]

People make a big deal about how scary and terrifying black holes are, but really, they are not any more or less dangerous than any other type of stellar mass. Getting too close to a black hole has the same effect on a carbon-based lifeform as getting too close to ANY star. If anything, black holes would be the safest thing you could build a space station in orbit around, since they don't expand into red giants or go nova like a main sequence star.

[@DavidHanniganJr]

The title of this video incorrectly insinuates that there are no black holes in our galaxy. When the exact opposite is the truth. Not only is there a black hole in our galaxy, but there are many lot more than can even be considered close to zero on a galactic scale. These are the kind of titles that will diminish perceived credibility.

[@JohnRandomness105]

There's already a supermassive black hole at the center of our galaxy. And black holes within 10000 light-years of us? For that matter, what would happen if another star entered our solar system? The biggest or perhaps earliest effect of a star, neutron star, or black hole entering our solar system would be to disrupt our planetary orbit -- possibly sending Earth out of the solar system, or into a huge comet-like orbit.

[@toobles3]

7:00 what about the crew on the ISS? would they be the only ones alive?

[@wendelllecroy214]

This scenario is based on a trajectory heading straight for us. The far most likely trajectory would be a tangential approach passing through some part of the system, preferably the outer part, in which case the continued existence of the inner planets would likely be undisturbed. There is reason to believe the solar system has endured passing stellar objects before. However, even a brush with the Oort cloud would likely unleash a great deal of debris upon the inner system. If it get as close as Jupiter or closer, our odds get exponentially worse.

[@DARisse-ji1yw]

Screwed beyond words.... So I don't worry about it ....

[@ClarkBK67]

Was thinking in the Earth goes rogue scenario, even if you could build a cavern warmed by the Earth’s core you would still need to build a biosphere that could self-sustain forever. 11:21 Like grow lights and plants, to eat and recycle your CO2 into O. Water and water recycling. I give it 20 years tops before it all goes tits up.

[@1themaster1]

Even if a black hole would fling us away, we would still need some time to pass through the accretion disk and Oort cloud equivalent of that black hole. So Earth would still be pounded by different cosmic projectiles constantly, maybe even, instead of cooling down, heating up, because of the interactions with the dust and gas particles of the accretion disk colliding with the planetary atmosphere.

[@Penfold101]

1:03 Apparently you can have an orgasm if you enter a black hole, and if time has no meaning then you're orgasming forever. Science!

[@commonsense-og1gz]

there is actually an intermediate mass BH. a 100,000 solar mass BH counts as intermediate.

[@fumblerooskie]

Please explain how not even light can escape, yet black holes can emit enormous streams of radiation.

[@shepardice3775]

Because the radiation is from the accretion disk, which is the matter orbiting around it and getting superheated by friction. It's not coming _out_ from the inside of the black hole itself.

[@sookendestroy1]

Essentially quantum mechanics, the energy from the matter consumed is converted into a pair of "virtual particles" (this is a whole thing but quantum mechanics assumes particles sort of pop into and disappear from existence constantly which effects random chance) one appearing inside the event horizon and being annihilated, the other appearing outside of the event horizon and drifting off into space. The energy used to perform this process means every time it does this it loses a tiny bit more energy and eventually they just fade away. Ah I thought you meant hawking radiation, yeah theres two different processes that give off radiation from black holes. See the above comment with the radiation of the material orbiting the black hole.

[@Big_Tex]

If you’re talking about the astrophysical jets, astrophysical humans do not yet understand exactly how they work. Except it’s often speculated that dynamics of the magnetic fields around the hole cause them. Pretty cool in any case.

[@fumblerooskie]

@@Big_Tex 👍

[@Glitch_Online]

i'ma gonna go freeze my self so i can be unfrozen just to be "alive" when earth goes down the drain

[@Naptosis]

Imagine how pissed you'd be to go to the effort of freezing yourself and then wake up in the past. 😅

[@captaingraybeard]

Some people just don’t think about their video titles thoroughly enough. Maybe he meant solar system, not galaxy

[@rhyslogan6490]

Wow I don’t think I’ve ever been this early to a video. Hey Simon, if you see this I want you to know that I love your work and I’d like to see more megaproject videos on obscure ancient monuments

[@simonwyndham]

Ah, but there’s a current theory that the universe is already inside a black hole, because the maths supports the idea that if a black hole was of a certain size, you wouldn’t be spaghettified.

[@ElKabong3345]

Any big object, however condensed, is a gravity trap A black hole isn't the only thing that does spaghettification, neutron stars do it too.

[@ignitionfrn2223]

1:35 - Chapter 1 - How likely is any of this ? 4:00 - Chapter 2 - What would happen 8:20 - Chapter 3 - Never tell me the odds 9:50 - Wrap up

[@DDlambchop43]

there was a history channel limited series about stuff wrecking the planet and getting eaten by a black hole was one of them. Spolier : it doesn't go well. Look up "Doomsday: 10 ways the Earth will End" I think that's the title.

[@sookendestroy1]

Simon confused galaxy for solar system didnt he...

[@georgejones3526]

His writers did, and he didn’t catch it.

[@davidtatro7457]

I love this video so much. Now personally, l am rooting for a magnetar to enter our solar system first, because l think being instantly atomically decoupled by a magnetic field sounds more pleasant than spaghettification.

[@bobbun9630]

It's always fun to see the idea of a "singularity" tossed out there as meaning that matter is crushed into a single point. The term "singularity" actually comes from mathematics and describes the point where a formula is not well defined. Just as an example, given the formula 1/x, when x=0 there exists a singularity, as the formula is not defined at that point. Taking a step back, though, the existence of physical singularities is not at all clear. All a singularity means is that a formula we use to describe the universe does not apply under some weird condition. The formula could be wrong, or at least incomplete.

[@ziggystardust1973]

Unless the black hole appears because we accidentally dial it with a stargate we'll be fine :D

[@thomasmarren2354]

Isn't the Stargate technically a black hole because it is a wormhole and black holes are thoreized to have a worm hole inside them leading to a white hole on the other side?

[@jennifergidden9884]

What about intermediate black holes? Thought there were 3 types

[@Braddeman]

Good news if the infinite multiverse hypothesis is true and every outcome is possible there are a lot of multiverses where we have a black hole travel through the solar system.

[@h-e-acc]

By then, we would’ve already developed a micro/macro wormhole generator to escape it or planted in the black hole so the black hole gets transported into another dimension

[@aceundead4750]

There's some recent maths that's been done thay says depending on the size of the black hole spaghettification wouldnt occur.

[@alexanderstone9463]

Technically the best case scenario for humans is that we leave the Solar System as it approaches within 1 light year (i.e. when we finally detect it).

[@steeneugenpoulsen8174]

Your close to confusing black holes with vacuum cleaners, black holes does not SUCK, they are the same as a sun or planet and does not have any magical sucking powers like a vacuum cleaner.

[@MrJLCharbonneau]

There was the old Arthur C. Clarke idea of collapsing one of the gas giants to counteract the gravity waves of an incoming black hole. But after the danger had passed, we’d still have to deal with the problem of a newly formed black hole out around the orbit of Jupiter.🤔

[@robsquared2]

Well, the number of black holes can only go up, at least on time frames that matter.

[@equious8413]

"a dormant black hole doesn't emit any radiation." *Screams in robotic voice*

[@pj9615]

I enjoyed the visuals 👍👍

[@misterlau5246]

Another black hole? But there are many of those fellas already in the milky way, so one more won't do much

[@duncancurtis5971]

Simon is Reinhardt 2. In, through and beyond!

[@boomjykeo2]

Petition to get “It’s a f*ckin black hole, innit?” printed on a shirt

[@01oo011]

Yeah, space is fascinatingly terrifying.

[@Raz.C]

Black holes are OBVIOUSLY not infinitely dense. Otherwise, their mass wouldn't increase when they consume an external mass. If black holes did have an infinite density, then when they consumed a star, neither the mass nor the density of the black hole would increase. Since the mass DOES increase (thus, so too would the density) when matter enters a black hole 🕳, the only conclusion we can reach is that the density of black holes is NOT infinite.

[@boldandthebeautifulgimbal2881]

Could black holes be pushing matter back through the Higgs field, and then this matter exist behind the Higgs field as dark matter?

[@JuxZeil]

Kristie at Level1 needs to see this. 😂

[@Pabz2030]

So you're saying I need to dig my bunker a bit deeper than it's current 4 meters then?

[@Italianjedi7]

That’s cool. I didn’t know that theoretically you could use gravity waves to deflect a black hole 🤔

[@MrT------5743]

Black holes are essentially a large mass. Mass when moved causes.gravity waves. Faster they've the more waves. You could move anything with mass using other mass (moving mass causes gravity waves). It is not like we have that ability though at least yet we don't.

[@RIXRADvidz]

Like 848 to attain Singularity is the Ultimate Goal

[@rosalindavasquez4353]

I justed watched a video on the supernova that's on the star beetle juice so it says in the end that after the explosion it can possibly turn into a black hole my question is if that happens will it sucks in faster than ever

[@TheUndert0ker]

Whoever edited this was having so much fun. I love it❤😊

[@camwyn256]

At least we can take some solice in knowing our utter obliteration will be so nigh instantaneous that we won't be able to feel how excruciatingly painful it is

[@briandoss9232]

So another case of. It would happen so quickly and aggressively that we would all die horribly so quickly with no hope to stop it. So best not to worry about it.

[@zombiedad]

The Oort Cloud bit disingenuous also. Sure the Oort Cloud may have over a trillion objects but it is so vast, so very, very vast, the likelihood of one those objects hitting us, is less likely than that of the black hole hitting the solar system

[@antiisocial]

Well that's a feature that really sucks.

[@zombiedad]

Lol. You took too much Joy out of this.

[@zombiedad]

Also from a light year away it would still take about 2.7 millions years to reach us. Lol.

[@zombiedad]

Sorry. Meant 2.7 thousand years. Lol. Big error but still a very long time.

[@chitster]

Ton 616 is a hyper massive black hole, there aren't many hyper massive but there are a few

[@SlickTim9905]

I find it funny that you think that something with such a great gravitational pull would move by itself. More likely we'd be pulled into it. The other idea of a collapsed star implies it's still in the form or shape of a planet. But you need light to see or make that visualization that it has shape. How can it both be a hole and a planet (that moves) at the same? time

[@I.am.Sarah.]

Considering that the deepest we have ever dug was considered to be much hotter than anticipated maybe we don't need to dig that deep to save ourselves. Sure there would be many challenges but as a species we seem to thrive on challenges.

[@captainspaulding5963]

What?

[@JoeSmith-cy9wj]

You know, some of our best and brightest minds in this field believe it is likely that we are merely avatars in a video game. If that's the case, anything can happen if a black hole were to come to dinner.

[@Grim_and_Proper]

I usually enjoy your videos but in this case most of your science is incorrect and seems to be based on the pop culture representations of black holes rather than scientific fact. I'll start with the one thing your writer did have correct, the gravitational disturbance a black hole will cause. It is likely to stir up the Oort cloud, sending comets into the inner solar system, and may disturb the relatively stable equilibrium of the Solar System's planets, causing one or more to be ejected or possibly collide. The things that were portrayed poorly or just incorrect: Probability that a stellar black hole collides with anything: Stellar black holes are incredibly small and the distances between solar system objects is very vast in comparison. The largest stellar black holes have Schwarzschild radias of around 300 km (186 mi). Even rounding up to 1,000 km or 500 mi across, Venus' closest approach to Earth is about 40 million km (25 million mi). This is especially true for the Oort cloud that you mentioned; as, while it has contains many objects, they are incredibly diffuse and on average very small targets. Basically, The idea that a stellar black hole will swallow Earth, then Venus, Mercury and finally the Sun is laughable. It would need to be travelling at an incredibly precise speed to intersect the orbits of all three planets and the Sun. Spaghettification would not matter: It's a great word but sadly it is irrelevant in this discussion. If, in nigh-impossible event that a stellar black hole collides with Earth, the planet will reach it's Roche limit and be tidally disrupted far before we hit the region where spacetime is being spaghettified. Earth would become part of the black holes accretion disk, only dust and rocks. We believe Saturn's rings were formed when such a process occurred to an ancient moon that once existed. Nature of black holes: Although black holes have immense mass, and therefore gravity, they don't just suck everything up like a vacuum cleaner like you suggest. For example, if you replaced any object in the Solar System with a black hole of equal mass everything would continue to orbit the same as before. Black holes are actually difficult to feed. In almost all cases, matter falling into a black hole must slowly in-spiral. The reason for this is the decreasing volume of space the closer to a black hole an object is. Basically matter "bunches up". This is most commonly seen as the glowing accretion disk. There is a balancing act between gravity being countered by pressure and heat, resulting in a relatively slow feeding process. There may be some extremely improbable cases where a black hole collides with a planetary object head-on occurs head-on and at a high enough velocity that tidal disruption is minimal. I haven't done the math but I image it is likely that at such speeds, the black hole will just punch through the object, obliterating a hole close to it's diameter and releasing a tremendous amount of radiation. Finally, the big exception: The above is for stellar black holes and is likely the same for intermediate-mass black holes as well. Things change slightly for supermassive black holes. When the Milky Way and Andromeda collide. I did a quick and dirty calculation on the radius of Andromeda's central black hole being 45 a.u. at the higher mass estimates of 2.3 x 10^8 solar masses. Having a radius 45 times the distance between Earth and the Sun will obviously increase its chance of hitting objects during the galactic merger. However, even in this case it is exceedingly unlikely. For context, during the merger of Andromeda's 1 trillion stars and the Milky Way's 300 billion stars, the probability of even a single stellar collision occurring is negligible. Space is simple that vast.

[@Summer-isnotcool]

Well that's a nice and comforting thought right before bed xD