The Ultimate Guide to Black Holes
Kurzgesagt – In a Nutshell
If you want to continue thinking about black holes a tad more, you can do so by getting one of the many black hole related things the Kurzgesagt team made with love:

Sources \u0026 further reading:

Our Video on Neutronstars:
Our Video on the Information Paradox:

Black holes are the most powerful and extreme things in the universe and they are wildly weird and complicated. What would happen if you fell inside one and what are they really?

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  • Kurzgesagt – In a Nutshell
    Kurzgesagt – In a Nutshell

    Ok, phew. So we are done explaining any properties of black holes forever. If we ever talk about black holes in future videos we'll always link to this video. If you want to continue thinking about black holes a tad more, you can do so by getting one of the many black hole related things the Kurzgesagt team made with love:

    • Margot Milane
      Margot Milane

      How are things going

    • Thạnh Phạm
      Thạnh Phạm

      Stupid science Science doesn't know The Earth ' s core continuosly generate electricity, the proof is that Every second the Earth explodes with 100 lightning bolts, if the Earth ' s magnetic field increases by 1kilowatt, the magnetic field of the Hercules - Corona borealis Greatwall immediately increases by 72 00 billion billion kilowatts

    • Srey Mab
      Srey Mab

    • The sky's star died
      The sky's star died


    • Novadestroyer The Sun destroyer
      Novadestroyer The Sun destroyer

      Negative mass btw

  • Impedimentaa

    Dude im watching this high as a kite and i gotta say my mind is BLOWN

  • Who Are you
    Who Are you

    8:21 - 8:23 Sus

  • Viewer

    Event Horizon would be a great name for a futuristic exploration space ship

  • 2021.7.53 Dhafi Zahran Farasha
    2021.7.53 Dhafi Zahran Farasha

    i a errer sdo dooof dofhojje fiosnfnljdnjf

  • Leandro Parmejani
    Leandro Parmejani

    Legendem em português 😪

  • radi nelaj
    radi nelaj

    Maybe black hole is pure energy buy is invisible ,maybe inside the ( atom) the string there is a small black hole ( string theory), maybe black hole are junction of some fields, maybe should study the tornadoes , what cause them ? What formed them?,it seems like black holes, Maybe something pass out ( or in) black hole, , but is invisible . you should change the filters to see it ( to distinguish it) .

  • Titanius Anglesmith
    Titanius Anglesmith

    I requestith the video-ographerpher makith a videogrofy ofith the ADHDith

  • Jeczman Jutubovich Prögrammor Domácí
    Jeczman Jutubovich Prögrammor Domácí

    3:20 Among Us

  • 刃 鬼滅
    刃 鬼滅

    The frequent jelly preauricularly annoy because morocco noticeably pat regarding a handsome hardware. grubby gruesome, efficacious produce

  • Natalie Lao
    Natalie Lao

    The automatic cheek historically prefer because scarf steadily drag apud a deep blizzard. puffy, guiltless jar

  • Moldy Sann
    Moldy Sann

    Really cool intro and Animations! Great content and information

  • Lance

    le gasp. its the space tutrle god from IT 😂😂😂

  • Brian McManus
    Brian McManus


  • Avonte Dawson
    Avonte Dawson

    I like to think black holes are the beginning of restarting the universe if the universe goes dead they eventually die n give out radiation something with enough mass to gab onto n pull in so like the very last black hole alive in the universe respectively turns into the new big bang

  • Bailey Maule
    Bailey Maule

    We already know what’s inside blackholes Bookshelves

  • nolejd50

    0:55 Portal 😍😍🥰🥰

  • JotaroKujo_StarPlatinum

    3:06 I just figured out how GER works...

  • Jonathan Buckwalter
    Jonathan Buckwalter

    Surprisingly understood almost non of them 😒

  • Kelvin Aguilar
    Kelvin Aguilar

    We need this video in Spanish please

  • János Mikler
    János Mikler

    Mivan? A Magyar felirat nyugdíjba vonult?

  • Kyle Hight
    Kyle Hight

    There is no proof that black holes warp time. A person living by a black hole in space will age the same as someone on Earth.

  • Ryohio

    I think our universe is what consists inside of a black hole. My theory is that the Big Bang and the description of how a black hole forms sound almost exactly identical, an unfathomable amount of energy crushed and focused down to a single point, then a sudden burst and rapid expansion. I think these 2 events are the exact same events, and this also points twards the multi-verse theory also being true(maybe,lol), since there are countless black holes of every size all over the observable universe, all containing they're own universe's of varying sizes, which in turn contain countless black holes, Exc... But PLEASE, somebody give me feedback on this, I've been trying really hard to get somebody with any scientific understanding to give me they're take on this theory, so I would really appreciate it.

  • Naga Prasad
    Naga Prasad

    17 years me sleeping like pig in class while professor explains Black holes. 28 years me not getting sleep and decides to watch video on Black holes at 3 AM.

  • Plutonian

    The big bang theory is just a guess so it likely is wrong. The universe probably began with a blackhole about twenty times bigger than the Milkyway galaxy it reaches absolute mass and explodes bursting out incredible amounts of matter the universe stretches and stretches for googol years and then black holes engulf all the matter in the universe and then they destroy each other and than overtime all the matter in the universe becomes one giant black hole and the cycle restarts after a very long time of compression. Still doesn't answer the question of how the first cycle ever started without there being anything before that.

  • Interstellar Dumbassery
    Interstellar Dumbassery

    I wish i could become immortal and get trapped in a blackhole 😔

  • Angel__l // TaikaHerra
    Angel__l // TaikaHerra

    AMOGUS 3:20

  • JamesTrevitt

    5:43 - "There is no memory of the things that made it, as stuff disappears down the black hole trap door forever." Not true - Soft hair records everything - 12J. - Stephen Hawking, Malcolm Perry, Andrew Strominger.

  • garry Sweet
    garry Sweet

    The efficacious stage curiously blush because frog pharmacodynamically frame times a telling quilt. dear, bloody bladder

  • ajstyles phenomenal
    ajstyles phenomenal

    Goddamn! I wanna be an Astronomer

  • Shyla Giroux
    Shyla Giroux

    The accessible south korea intrahepatically help because policeman increasingly impress across a gigantic keyboard. whimsical, oafish denim

  • Bed Potato
    Bed Potato

    Time to get spaghettafide

  • 나나

    어렵지만 그래도 재밌네요. 영상 하나하나 볼때마다 견식이 넓어지는 느낌. 그 과정이 힘들기는 하다만..

  • Awper

    9:51 10 67x year to lose 0.0000001% Me : Life is hard

  • RandomDucc 2000
    RandomDucc 2000

    Ok so... ▶️ If when you are in a black hole, time speeds up, then won’t the black hole itself evaporate? ▶️ If there were 2 objects connected via unbreakable rope, when 1 part is inside black hole and the other is outside, if ‘any way you go goes towards the center’, then the rope must be in a direction, but it can’t go towards the center as it is is connected to the other one. How? ▶️ The rope wouldn’t be pulled if it went down, because the rope is the black hole’s radius. But it’s radius isn’t the radius, because with infinite density, it warps space infinitely, so the rope would be going in both no direction, infinitely long towards the center, then a direction in which who knows what happens. ▶️ If it bends infinitely, you have traversed infinite distance (in bent space-time) in a finite time. Wait no the time is infinite but dilated. So the rate at which you go (as in bent space-time) per hour is infinity divided by infinity. Great. (I’m 10 bruh)

    • RandomDucc 2000
      RandomDucc 2000

      idk man

    • Dedo

      oh god what have you done to my brain

  • Benlor Eh
    Benlor Eh

    god:*trying to make neutron star* *got black hole*. also god: *its not a bug, its a feature*

  • Paul Young
    Paul Young

    No one really actually knows,being honest no one has survived or even came close to this,its all based on talk!!!

  • Cloudy Star Sky
    Cloudy Star Sky

    3:19 AMOOGUS

  • banana Studios
    banana Studios

    haha get it omogus this is sataire

  • Kyshn_

    3:19 black hole kinda sus

  • Kelly Ohlson
    Kelly Ohlson

    3:19 When imposter is sus

  • D L
    D L

    I’m so confused!

  • Rachith Navile
    Rachith Navile

    Why do every time I watch a video about blackholes from Kurzgesagt I feel like revisiting Interstellar.

  • Super Gogeta
    Super Gogeta

    The obsequious patio concomitantly object because cirrus evocatively multiply through a draconian page. imaginary, purring salad

  • Sasan ABL
    Sasan ABL

    The more knowledge I receive about the universe the more unserious I get life, like I’m just goin to live maximum of around 100 years of a tiny planet. It’s seriously hard to observe this much of space information 🤦‍♂️

  • Julian Arostegui-Lacheen
    Julian Arostegui-Lacheen

    No one gonna talk about the among us guy at 3:20

  • Varghese Mathai
    Varghese Mathai

    Is it just me.. or doesn't he sound like Jaime Lannister

  • Stanislav Kinzl
    Stanislav Kinzl

    It wouldn't make sense that density of a black hole is infinite because they can grow. The more information/matter they consume the bigger they are, meaning the density inside isn't infinite. It can mean that the density levels inside of a blackhole are the greatest level of density of a information in the universe and that black holes don't have a core as they themselves have equaly everywhere the same density

    • Stanislav Kinzl
      Stanislav Kinzl

      ​@Mihajlo Sreckovic It happened to me a few months ago, althrough I comment on YT very rarely, that my comment vanished a moment after I replied. It is probably due to yt algorithm that tries to keep the comments civil but sometimes malfunctions (and my comment then wasn't smth impolite or vulgar). Well it is a mistery then what is inside of a black hole. But dividing by zero by using a typical formula using general relavity sounds a bit inconsistent. Maybe it is the gap within our own constructed mathematics the reason why we just can't calculate more exact insides of a Black Hole. Then "Singularity" is just a fancy name for sweeping off the table the problematic of our own limitations when it comes down to predicting what is inside by using our current means as we cannot explain it right now with more confidence. Insides of a Black Hole are so extreme, the space-time continuum is so warped, that the laws of general relativity could just not work inside. Maybe when we'll understand more properly another aspects of the universe like dark energy particles and dark matter particles etc. then that would hypothetically allow us to give a better estimate. If Black Hole's gravity eats everything then it should eat these too and they would then change the properties of how the black hole behaves? It is said that the time inside of the black hole flows much slower or even doesn't flow at all. It sounds to me that black holes have two purposes :D First being the gravitational centre of galaxies and then second being "refrigerators" for information about matter. And then (this is just absolute guess, well this all is) when the "dark energy" runs out and universe starts contracting in space (the big crunch), in the timeline of the universe when nothing else than black holes remains, this information will be used for another Big Bang nucleosynthesis. Maybe Black Holes have some or all responsibility for the dark energy running out and then for contracting the space around them itself. And once all black holes collide into one another the next big bang begins sparking the next universe. This all comes with the assumption that universe is indeed finite.

    • Mihajlo Sreckovic
      Mihajlo Sreckovic

      @Stanislav Kinzl I replied 10 hours ago, have no idea where my reply went xD. How do we know for sure? Well, we don't. That's why it's called singularity, we have no idea what it actually is. When you put the mass of a singularity and radius of a black hole in equations of general relativity, you literally start dividing by zero, and get infinities. It says that all matter should get to a point of infinite density, which is so absurd that we choose to call it singularity. This is so bad that we actually know that general relativity is fundamentally wrong. I mean, it's a great theory and makes very good predictions (like black holes), but it doesn't have to be the true nature of the universe. The problem with singularity is that, it has so much mass that you have to account for general relativity, but so small that you have to account for quantum mechanics, aka we need theory of quantum gravity, a theory that no one was able to develop. Thinking of singularity as point in space with infinite density is currently the best way we can think about it, but is probably fundamentally wrong.

    • Stanislav Kinzl
      Stanislav Kinzl

      @Mihajlo Sreckovic So the gravity is so strong that photons cannot escape at some threshold, but it doesn't mean that that's where the matter of black hole begins. The matter continues being pulled by gravity to the centre of the spheric shape which is the singularity. But how do we know for sure? If the photons don't escape beyond the event horizon then there can be a matter amassed of any diameter (not in a singularity)

    • Mihajlo Sreckovic
      Mihajlo Sreckovic

      @Stanislav Kinzl Black holes DO grow, but storage space is not increasing. Everything that gets into black hole becomes part of singularity, and singularity never changes it's volume, aka it's "storage space". The reason black holes grow is not because storage space is growing, but because gravity gets stronger (because mass is increasing), and thus light from farther away can't escape from black hole, which means it's event horizon has grown. So event horizon grows, but storage space doesn't change.

    • Stanislav Kinzl
      Stanislav Kinzl

      @Mihajlo Sreckovic Right, but if density inside of a black hole was infinite, wouldn't black holes be just one point never growing and expanding but with variable mass inside being added to that one point with an infinite limit to its density? That's how I imagine infinite density - you can store all the mass in one place without ever needing to increase the "storage space" of it. If they grow it means that the insane gravity inside cannot dense everything in one point no?

  • Ashish Mathur
    Ashish Mathur

    The ultimate masters of the Universe ❤️

  • The Oofisle
    The Oofisle

    Im angry with how impossible black holes are

  • Yapik2008 channel
    Yapik2008 channel

    Kurzgesagt, how to make animation as you do? i wanna make my own videos with this cute graphics :)

  • Roblox Legend
    Roblox Legend

    i noticed a millenia ago that the monkey holds something diffrent every video most of the time based on the video

  • Sankalp Chatterjee
    Sankalp Chatterjee

    my brain understood that.... wow edit:- cuz like I understood how future time travel works in a previous video but past time travel got my brain a little but I understood why its locked in a blackhole cuz theories and gravity which is also the thing causing that theory/ reading to break universe is the only thing keeping it away if its possible and the way the light of the universe disappears makes sense aswell because a simulation of a blackhole is just like that since light is weird around it so the same applies when it s taking u away from the universe's light which is weird but makes sense cuz light is getting absorbed with you. I like science but I feel like its too much even if you go for specific things cuz this just scratches the surface of black hole weirdness

  • Jj T
    Jj T

    It󠁥󠁳󠁶󠁣󠁿 can't be the last video about black holes. NOOO 😫😫😫😭😭😭 😥

  • fight2 keep
    fight2 keep

    Anyone know where i can send topics for another episode?

  • Jaakko Haapasalo
    Jaakko Haapasalo


  • That guy rna
    That guy rna

    Spaghettification has to be added to the dictionary

  • Waydens

    when chief keef was just a baby he saw 3 black holes born and died

  • Steel

    5:59 He said the thing! He said the thing!

  • Terence Sayers
    Terence Sayers

    Can a black hole ever die? Or disappear ?

  • Gabriel Explores The World
    Gabriel Explores The World


  • Just Jazzy
    Just Jazzy

    My friends: infinite doesn't exist Me after watching this video: are you sure about that

    • Reasonable Context
      Reasonable Context

      Infinite doesn't exist

  • sunz

    0:21 please tell me the turtle is a reference to exurb1a

  • gelan dangan
    gelan dangan

    Just wondering, who the heck hit the dislike button. I am incredibly want to know you. 2K is not a small number.

  • WorldshallKnows Pain
    WorldshallKnows Pain

    Easy when you go in the black hole its like the sun it vaporize everything what makes it more powerfull its mass and gravity when you go in it just vaporize everything tou would be destroyed becore you can even be in it

  • th3_grim_ reaper
    th3_grim_ reaper

    Doesn't that mean if our solar system got sucked into a black hole we would be fine? Or would we just die? That's what really makes blackholes terrifying, Not knowing what's on the other side of a void, and we actually may never know.

  • Cheesy Toenails
    Cheesy Toenails

    3:19 AMOGUS 😳

  • TheDark Fighter
    TheDark Fighter

    You can be a tour guide for blackholes LOL

  • DurpyFlabergazm

    What’s the theoretically smallest size a black hole could be? And, could someone accidentally make a black hole when using or making a nuke? What would it take and how long would we last? How close could we be to making our own black holes!?

  • DGF olshop
    DGF olshop

    5:30 do nothing Me: finally my skill useful

  • Tommy B
    Tommy B

    There’s a kid in my class who legit calls them African-American holes.

  • medexamtoolsdotcom

    Actually it's really easy to understand 10^100 years. Because there are within 20% of 10^50 atoms in planet Earth. So just imagine 2 planet Earths. Every year, one atom is taken away from the Earth on the left. When it's gone, it is reconstructed and one single atom is removed from the Earth on the right. And again, the Earth on the left is deconstructed one atom per year, and when it's gone again, a 2nd atom is removed from the Earth on the right. This process is repeated, and 10^100 years is about the time it takes for the Earth on the right to disappear. Or for 10^67 years, just consider 10^17 years for every atom in the Earth, that's 100 quadrillion years or 10 million times the current age of the universe, for each atom in Earth. That's how long it takes for a solar mass black hole to evaporate. See? It's not hard to imagine at all. Incidentally, vacuum decay would most certainly be set off by the evaporation of any black hole to the very end, as that would be the point at which it would reach the planck temperature, and if that isn't enough energy to push that region of space over the threshold, nothing is, so you'd better hope there aren't any primordial black holes just about to finish evaporating anywhere in the universe, because that could happen at any time, and if it did, you could be gone before you even finish reading th


    So in a nutshell the singularity is the graphs from 4th grade IRL

  • Eric Kilmartin
    Eric Kilmartin

    I miss my 3-year old......where were you in 2011?

  • Super Luigi Bros Animations
    Super Luigi Bros Animations

    Watch it on switch its cool

  • Hipsterized Doll
    Hipsterized Doll

    3:19 Red is kicked by the crewmates😂

  • satvik devgan
    satvik devgan

    I have a question what if we were to inverse the gravity inside the black hole ? will all the energy it contains burst would there be an explosion ? what would happen?

    • Tyler Sauro
      Tyler Sauro

      We'll never really know the true nature of black holes, so I'm not sure.

    • satvik devgan
      satvik devgan

      @Tyler Sauro true but thats a paradox of what would happen if we were to go in a black hole and it opens to an alternate universe where everything is spit out instead of being attracted im taking what would happen if we beam exotic matter(anti gravity )inside the black hole or it being outside it ?like what would happen?

    • Tyler Sauro
      Tyler Sauro

      I know that "white holes" are supposed to be repellent instead of attractive.

  • Matthew Peifer
    Matthew Peifer

    These are always so trippy I love them

  • Alijah Moore
    Alijah Moore

    Do not buy anything from these people I spent 200 dollars on posters on may 26th and still have not received them. Now when I look up where the package is it tells me it has been sent back to the sender because they forgot to provide the address which I gave them clearly.

  • simple-life

    FunFact: An Indian Mathematician SrinivasRamanujam Wrote the Formulas About Black Hole when there is no concept of Black Hole. After 100 Years of SrinivasRamanujam Death, Scientists are Claiming that the formulas of SrinivasRamanujam where he wrote before his death Represents BlackHole. SrinivasRamanujam had the Power to Connect with goddesses Called Namagiri Devi. With the help of goddess Namagiri Devi SrinivasRamanujam wrote about this. "A Man Who Knew infinity" is the movie available on UZmatch.

  • Milk

    3:18 red is kinda sus

  • Raptor Nodes
    Raptor Nodes

    What if there is another *UNIVERSE* in the black hole. We will have an new *DISCOVERY*/ *UNIVERSE* *DISCOVERY*

  • Jovanovic Nikola
    Jovanovic Nikola

    7:33 This was pretty cool, not gonna lie.

  • l Kinetic
    l Kinetic

    Will blackholes cancel each other out when two of them comes close together and their ergosphere spinning in total different direction? I know theoretically when two blackholes meet each other they just become bigger one? :think?:

  • 레드로제

    thanks for korean sub

  • Mokbul Hossain
    Mokbul Hossain

    3:21 theres a red sus floating lol


    I have to know man, I have to know, you don’t know how much I would give up to know. I would lose everything to see everything everywhere, at any time. I would Burn myself alive to know everything.

  • dasja pom
    dasja pom

    I love the little portal reference! ☺️

  • Quin Coo
    Quin Coo

    How long is delivery for your merch?

  • Teghan Shaer
    Teghan Shaer

    Can you make a rainbow duck plushie

  • Games!

    A new way of execution

  • mamamamamama mamamamamama
    mamamamamama mamamamamama

    The way God made the universe is amazing!🤩🤩🤩

  • DarkurSrike

    What about white holes?

  • C. Slater
    C. Slater

    I love this channel so much, if i could subscribe twice i would

  • Sinan Fidan
    Sinan Fidan

    Yiğithan Kılınç adamsın altyazı için eline sağlık.

    • Ömer Faruk Kaya
      Ömer Faruk Kaya

      Yazdığını görmeyecek ama olsun. :)

  • waffl3_ir0n

    there are black holes in the universe that are older than the universe

  • Jens Temberg
    Jens Temberg

    It would be SO amazing with a video on cosmic inflation 🤯

  • Denis Savgir
    Denis Savgir

    You shouldn't have said that this is the last ever black hole video. Why? What if more discoveries are made? Why limit yourself like that? Don't say forever. Not even black holes last forever. .. WTF UZmatch, Let me respond to Kurzgesagt's comment!

  • Henry Lorenz
    Henry Lorenz

    3:40 this black hole on a shirt would be nice, at least I think it could be good looking

  • Imperious Hearth
    Imperious Hearth

    But Can you explain more on white holes?