The Largest Star in the Universe - Size Comparison

Pubblicato il 22 set 2020
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We created our first app ‘Universe in a Nutshell’, together with Tim Urban of Wait but Why!
Google Playstore:
Sources & further reading:
Wait But Why:
Video on Red Dwarfs:
What is the largest star in the Universe? And why is it that large? And what ARE stars anyway?
German Channel:
Spanish Channel:

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Kurzgesagt – In a Nutshell
  • Kurzgesagt – In a Nutshell

    Kurzgesagt – In a Nutshell

    3 mesi fa

    We created our first app ‘Universe in a Nutshell’, together with Tim Urban of Wait but Why! You can get it here:
    Google Playstore:
    Oh boy. Making an app is hard. It seemed so easy when we started. We underestimated the necessary work load and all the potential problems tenfold – this is not a figure of speech, this took ten times longer than we thought it would. And we are sort of used to working on big projects. So the first update to the app should hopefully be here in the next 24 hours (we are waiting for approval of the update in the app stores) – it will fix a bunch of small things that slipped through. We’ll constantly improve this thing because while it was honestly a horrible nightmare to make, it also was fun and we want to get better at it and make more things in the future. In case you don’t know Wait but Why btw, it is the best and most fun blog on the internet ( and if you don’t know it you should change that like right now. Tim and I collaborated for the first time in 2013 and we have been good friends ever since. And this thing was something we started talking about years ago.
    So what is this thing we made and why? You can seamlessly travel from the smallest things in existence, past the coronavirus, human cells and dinosaurs all the way to the largest stars and galaxies and marvel at the whole observable universe. You can learn more about each object or simply enjoy the sheer scale of it all. It’s a fun plaything. The app is inspired by the “scale of the universe” website by the Huang Twins that Tim and I spent a lot of time with when it came out years ago – and felt that it was finally time to create a Wait but Why and Kurzgesagt version.
    There are no in-app purchases and no ads. All future updates are included! Since this is our first app we would love to hear your feedback so we can improve it over time. Leave us a five star review if you want to support it. Kurzgesagt and all the projects we do are mostly funded by viewers like you. So if you like the app we’ll make more digital things in future! Ok! Thank you for reading – Philipp

    • Short-stak


      11 giorni fa

      You should add a feature where you can compare sizes

    • Yohta Takashima

      Yohta Takashima

      17 giorni fa

      I already have that app

    • Nicff


      18 giorni fa

      I don’t know because it cost money



      26 giorni fa

      @Bork Boi Hİ



      Mese fa


  • 28 Stab Wounds

    28 Stab Wounds

    54 minuti fa

    Did brown dwarf kill your family or something?

  • malnsar


    Ora fa

    Why are you telling all this as a matter of fact? None of this regulation is proven. The dogmatic science you're so brilliantly narrating is unfortunately, for you and science, absolutely wrong. There is little to nothing you are correct about. Dear me. Move on from this settled science nonsense and start at the beginning of physics,, Berkland, Tesla, Pratt. They are on the right track. SAFIRE PROJECT are proving and repeating, reproducing and solving the biggest issues with physics and cosmology. Without the need for adhock holes, dark this n that. Just simple scalable science

  • The Sleepy Dot

    The Sleepy Dot

    Ora fa

    The animation and narration are both so satisfying

  • pluto


    2 ore fa

    What about uy scuti

  • Mase Mase

    Mase Mase

    2 ore fa

    Universe is bigger not sun

  • Frank P

    Frank P

    2 ore fa

    all speculation

  • TheTris


    3 ore fa

    I have learned so much because of your channel! 😆

  • Faze milarz

    Faze milarz

    3 ore fa

    can you guys please Join Jesus its all am asking for I really much thank fully and also stop swearing its not a good thing and also stop using God's name while saying oh my please please stop
    am doing this for of your please please.✝

  • Boltez


    4 ore fa

    What software do you guys use to edit and make graphics in your videos???

  • Kris Niemczuk

    Kris Niemczuk

    4 ore fa

    The universe might be full of giant and tiny aliens living on giant and tiny celestial objects. All beyond reach of one another's eyes.

  • Izaiel Jean

    Izaiel Jean

    5 ore fa


  • Lucas Zhao

    Lucas Zhao

    5 ore fa

    wait..where´s UY Scuty?

  • Alejandro Soto

    Alejandro Soto

    5 ore fa

    The quiet lily acly watch because equinox cytogenetically check alongside a lopsided kettledrum. marked, flashy mitten

  • Adrian Mierzwa

    Adrian Mierzwa

    6 ore fa

    More than 6k of brown dwarfs watched the video and all of them disliked it. I can't blame them for that. Actually I can. They did fail to be stars.

  • Cat Flowerツ

    Cat Flowerツ

    6 ore fa

    *Me litsening to this*
    Me: i want to be a sun.

  • Chu Junior

    Chu Junior

    6 ore fa


  • Max Dukhovskoy

    Max Dukhovskoy

    7 ore fa

    "a failed star that is a disappointment to their mum"
    *I felt that*

  • Piersilvio Pupello

    Piersilvio Pupello

    7 ore fa

    There is a problem with italian subtitles: after minute 9:43 they just disappear.



    7 ore fa

    Largest in the VISIBLE verse ...... Allthoe the laws apply throughout the entire verse I get the feeling humans have not seen the largest yet

  • Enrique Garza

    Enrique Garza

    8 ore fa

    Science: the sun will only last 10 billion years.
    Me a seven year old: Nooooooooooooooo

  • 00 0

    00 0

    10 ore fa

    자막이 왜 중간에 사라지니

  • Charles Rothauser

    Charles Rothauser

    11 ore fa

    So, why do stars form and why are there different types?

  • John Cyrus C. Sumang

    John Cyrus C. Sumang

    11 ore fa

    please make ur app free :



    12 ore fa

    Is it just my imagination or do you keep using something or the other that looks like the frame of the Death Star or the Death Star

  • W w

    W w

    12 ore fa

    Largest 😱🔥🌝

  • Abdullah Alrai

    Abdullah Alrai

    13 ore fa

    What a shame that we humans are still insinuating that there is no G-d (Creator) of this amazing Universe, where if we were to scale ourselves with these Hyper-giants we would be nothing but a tiny nano dot (quarks) as compared to what G-d has created out there in the universe. And in the past, our ancestors had the audacity to call upon mere human beings like us as God of this universe. And people in modern day and age still calling upon those mere human beings as their Personal G-d. Personality like Barhama, Ram, Krishna, Buddha, Jesus or in cosmos these mere Stars / Planets had became their personal G-d. How dumb and foolish that seems and sounds. What a shame. Thanks to Almighty Lord/Master of this universe that He guided me and made me a believer in Him alone. I wish and pray then my every fellow human-beings could able to see this light whenever they observe this beautiful creation that Our Creator has created for us to ponder and reflect deep so that we come back to Him alone in full submission - amen

  • Asher w

    Asher w

    14 ore fa

    All the homies hate brown dwarves

  • candice bachorski

    candice bachorski

    14 ore fa

    i can’t handle this right now

  • Tommy Vickerstaff

    Tommy Vickerstaff

    14 ore fa

    People always say Jupiter is massive but then say red dwarfs are tiny.

  • Ocy Bocy

    Ocy Bocy

    14 ore fa

    That Brown dwarf just got rosted well if it was hot enough obviously

  • Aaron• Highcloud

    Aaron• Highcloud

    15 ore fa

    I remember reading this book I never got to finish
    It’s about space travel I think in our solar system and a main feature in the book is Jupiter ignited and made another sun in our solar system and our second sun was called “Anubis” I think and a tube space station circled around Anubis to study the small sun...anybody remember reading a book like that? Sci-fi book about Jupiter ignition into a sun which is then named Anubis?

  • Sazerker Keronia

    Sazerker Keronia

    16 ore fa

    Cómo podemos permitir que haya gente que muere sin saber esto? La crueldad no tiene límites

  • The cooler Blixer

    The cooler Blixer

    18 ore fa

    Not failed wannabe stars
    It felt like a self attack

  • Jose Martinez

    Jose Martinez

    18 ore fa

    The Largest star is UY Scuti

  • Catherine Low

    Catherine Low

    18 ore fa

    I love your videos i subscribed to your channel!

  • Snakegirl 7777

    Snakegirl 7777

    19 ore fa

    What about UY Scuti?

  • Caleb Charlemagne

    Caleb Charlemagne

    19 ore fa

    Supernova explosions returned Some gas so oldest is borrowed some gas if I was a star I would turn into a white dwarf immediately

  • Caleb Charlemagne

    Caleb Charlemagne

    19 ore fa

    What is the alarm Spohn I’ll Stevenson to 18

  • James 3113

    James 3113

    21 ora fa

    Too much starism and exclusionism. Differently-starry stars ought to be stars too !

  • melody yan

    melody yan

    22 ore fa

    How much earths can you fit in the largest star

  • mohamad loai

    mohamad loai

    23 ore fa

    I feel like WE'RE NOTHING

  • not dodgy dude that is alive

    not dodgy dude that is alive

    Giorno fa

    A duck that is a god??? (Duckos)

  • S B

    S B

    Giorno fa



  • GRT


    Giorno fa

    Im gonna expand like a dying star this year!

  • Bill G

    Bill G

    Giorno fa

    Once a main sequence star ignites, why wouldn't the solar wind it creates not drive away any additional hydrogen from accumulating and making it bigger? Is the answer that it just gobbles up other nearby stars or is that just one answer to my question?

  • Felix Loreto

    Felix Loreto

    Giorno fa

    Marvel at the wonders of God!

  • Aaron saul

    Aaron saul

    Giorno fa

    "failed stars that are a huge disappointment to their moms."

    is that a gun shot i hear

  • Electron X

    Electron X

    Giorno fa

    Always have been wondering what will happen if we punch a hole through the star, looking forward on that topic, and i really want to know, because my teacher wont answer this kind of question

  • Nishu LS

    Nishu LS

    Giorno fa

    Brown dwarfs : exists
    Kutzgesagt : I'm about to end this man's whole career

  • TheSenator007


    Giorno fa

    Given that Stephenson 2-18 is about 2150 solar radii and the radius of the earth is about 6,378 kilometres, placing the sun on the surface of Stephenson 2-18 is like placing a sphere with a 3 kilometre radius on the surface of the earth, so compared to the largest star in the universe the sun is rather more impressive than a human compared to earth.

  • Alice Smith

    Alice Smith

    Giorno fa

    Red dwarf star exists:

    My brain: plays red dwarf theme tune

  • Pencils and Pens

    Pencils and Pens

    Giorno fa

    The worlds biggest star







    Idiots be like

  • Toni Peault

    Toni Peault

    Giorno fa

    que font les traducteurs français

  • Toni Peault

    Toni Peault

    Giorno fa

    tout est incroyable sur cette chaîne c'est si parfait merci pour ce pur jus de plaisir

  • Paiman Maqsoudi

    Paiman Maqsoudi

    Giorno fa

    I thought s7n is the biggest planet

  • Gaming Studio Channel

    Gaming Studio Channel

    Giorno fa

    The Largest Star in the universe is UY Scuti(UY Scuti is not the biggest Star in the Milky way, UY Scuti is from another galaxy/Universe)

    • Gaming Studio Channel

      Gaming Studio Channel

      Giorno fa

      UY Scuti is the biggest Star!!!

  • rcho 22

    rcho 22

    Giorno fa

    I relate to brown dwarf on a personal level

  • BigFuckOffTurtle


    Giorno fa


  • james tayla

    james tayla

    Giorno fa

    wow I never knew the sun was such a pissant

    • Yash G

      Yash G

      Giorno fa

      Sun : HOW DARE YOU!?!!

  • An Intellectual

    An Intellectual

    Giorno fa

    Aye yo kurzgesagt narrator ready for some beef with brown dwarf

  • Shota Toriumi

    Shota Toriumi

    Giorno fa

    The stale ox emotionally unlock because linda relevantly introduce inside a ripe jelly. romantic, dear typhoon

  • Wireless gamer

    Wireless gamer

    Giorno fa

    The sun when it’s fully grown: why does everyone look like ants.......????

  • Saurabh Yadav

    Saurabh Yadav

    Giorno fa

    Uy scuti is biggest star

  • Allison Stone

    Allison Stone

    Giorno fa

    i learnt nothing but the writers hating on brown dwarfs

  • James Sharman

    James Sharman

    Giorno fa

    Can you please make a video on logical fallacies? Thanks for considering!

  • Real Landscapes

    Real Landscapes

    Giorno fa

    jamie.. where do i tell them i like their ducks in space suits?

  • 11 BRAVO 10

    11 BRAVO 10

    Giorno fa

    The are civilizations out there that look at our math and interpretation of physics and scratch there heads in disbelief as to how off we are.

  • Muhammad Ibnu

    Muhammad Ibnu

    Giorno fa

    all of them fit on my phone

  • Emily Davies

    Emily Davies

    Giorno fa

    Wait so what is our sun?

  • MR KAZOO69

    MR KAZOO69

    Giorno fa

    wait you forgot the biggest of all
    *your mom*

  • Jesse A

    Jesse A

    Giorno fa

    In this video in a nutshell:
    You are small
    You are puny
    You are nothing
    Our sun is small
    Our sun is nothing
    Stars can be big
    and finally

  • john smith

    john smith

    Giorno fa

    The app should be free with an option to donate like Wikipedia. I honestly really want this I love the channels content but I am unemployed and receiving no financial help from the government. I may have to sell this laptop to eat soon. I am just very disappointed there is no option for impoverished & displaced (due to Corona) individuals such as myself. :'(

  • Michael Shuey

    Michael Shuey

    Giorno fa

    They give all the dimensions and scales as though they know what they’re talking about and as though it’s been proven when, in reality, modern astronomers have no idea what they’re talking about. All of the “data” given is just the result of guessing and wild imaginations. Disgusting.

    • Ahmad Rashiq

      Ahmad Rashiq

      16 ore fa

      @Michael Shuey "cult", "doctrine", "disgusting", "regurgitate". So just as you are frantically proclaiming that I belong to some cult, I hereby pronounce that you belong to a cult which has learned nothing, is sceptical of everything without ever coming with a solution to any problem. But that is not your problem. Your problem is that your cult can't contain their stupidity and they spill it all over the place. If you knew of parallax or luminosity, or for that matter basic physics, you would have been smart enough to figure out how astronomical measurements are done given that you "proclaim" yourself to be some "nuclear propulsion operator". Why should I believe that you are so and so but not stupid? 😂😂😂😂 Why do you not ask where the bacteria is? Have ever seen it? Do you see cells on your hand? Or nuclei of an atom? Do you think they are true?

    • Ahmad Rashiq

      Ahmad Rashiq

      17 ore fa

      @Michael Shuey I find it amusing. Why should I not? Do you have a problem with only astronomical measurements or with every measurement? Say are you sure your height is what you measure it is to be? Or your weight is what you think it is? Or if time makes sense to you? If the fundamentals are clear, then we can proceed further.

    • Michael Shuey

      Michael Shuey

      Giorno fa

      @Ahmad Rashiq I don’t find anything at all to be amusing. So, the claim is that a stars mass is calculated on how bright it is. You find nothing lacking in this doctrinal argument? 1. This presupposes that you have an established point of reference for mass that is physically measurable. 2. This presupposes that you have an established point of reference for distance that is physically measurable. 3. “Color of a star” is hardly a point of reference since you cannot overcome chromatic aberration or admixture of spectral wavelengths. Again, instead of regurgitating your cult doctrine under which we all had to sit in times past, I’m asking you for a rigorous proof using the scientific method. This request of mine is, of course, rhetorical since we both know that neither you nor anyone else can provide it. I’m sorry that you considered yourself a worthy apologist for the popular cult doctrines you’ve been taught since your youth and how you supposed that simple regurgitation of such doctrines would be sufficient to defend them.

    • Ahmad Rashiq

      Ahmad Rashiq

      Giorno fa

      @Michael Shuey 😂😂😂😂😂😂😂 I really appreciate your "disgusting" attitude. Anyway, a star's mass is calculated going by how bright it is (there is a certain HR diagram o simplify things). Based on the color of star (color is directly related to temperature and mass), we can ascertain the mass a star must have to power the nuclear fusion at the core to produce that color. A smaller more practical example would be a bomb. Based on the mass of explosives, we conclude the energy radiated by the explosion.

    • Michael Shuey

      Michael Shuey

      Giorno fa

      @Ahmad Rashiq if you recall, I simply stated that there was no proof for the claims made in this video and that, as such, it’s disgusting cult like thinking. The onus is not on me to provide any rigorous proof, rather, the onus is on you and other members of your cult. I’ve asked twice that you prove the claims made in this video and twice you ignored my request. I would have thought you’d be excited and proud to show such proof but it’s evident you are able to provide no such thing.

  • Rem


    2 giorni fa

    F for brown dwarf

  • tom bob

    tom bob

    2 giorni fa

    stop bullying the brown dwarf, he tried his best

  • Orion Rain

    Orion Rain

    2 giorni fa

    we are not alone there is another planet it is called he planet and the king of it is Pink Sheep because of his mustache.

  • Jiana Jylan Zarate

    Jiana Jylan Zarate

    2 giorni fa

    Np the largest star known to man is UY scuti which Is 1,750 times bigger then the sun

  • Vorshack


    2 giorni fa

    I like how at a certain point he doesn't bother trying to show where our sun is on the screen.

  • Nathan Thompson

    Nathan Thompson

    2 giorni fa

    I feel sorry for brown dwarfs now

  • Jacob Uveges

    Jacob Uveges

    2 giorni fa

    10:33 *teleports behind you*

  • Dominik Lewak

    Dominik Lewak

    2 giorni fa

    The biggest star in the universe UY Scuti



    2 giorni fa

    Thank you for this nice explanation.

  • Billy Ray

    Billy Ray

    2 giorni fa

    >implying we know which is the largest star in the universe

  • Mystiic Beautii

    Mystiic Beautii

    2 giorni fa

    '' We want to get onto stars and not wannabe-stars '' Me: *Gross sobbing when sees the brown dwarf's face*

  • Arshad Ashfaque

    Arshad Ashfaque

    2 giorni fa

    Just to ask one question...
    If star dies and again the cycle of star is repeated that means Universe will be eternal. Then why we came to a conclusion that all stars will die and there will be no power source to run the universe and eventually Universe will end.
    Kindly response @Kurzgesagt – In a Nutshell

  • pamela angela

    pamela angela

    2 giorni fa

    The unsuitable shovel ordinarily hurry because discovery densply hop beyond a troubled recess. well-off, lewd science

  • TheCrazyPhysicist 2

    TheCrazyPhysicist 2

    2 giorni fa


  • Özkan


    2 giorni fa

    Allah rızası için biri artık şu Türkçe altyazıya el atsın.

  • Phil B

    Phil B

    2 giorni fa

    Wow. Great video!

  • Анатолий Карабасов

    Анатолий Карабасов

    2 giorni fa

    Save this video as in several years it would be banned for the "dwarf" word using!

  • ME Toons

    ME Toons

    2 giorni fa


  • Ángela Russo

    Ángela Russo

    2 giorni fa

    Yall are so mean to brown dwarfs stars! 😭

  • Chaz Tranchina

    Chaz Tranchina

    2 giorni fa

    The outstanding fat chemically branch because dress mostly scrape throughout a earthy soup. marvelous, far fog

  • QUAG


    2 giorni fa

    Size doesn't matter in the end. Earth is already too big for us to travel around in a lifetime.

  • Ender Ince

    Ender Ince

    2 giorni fa

    hold my beer

  • Ark_Syndicate


    2 giorni fa

    So U.Y Scuti isn’t the biggest star anymore??

  • Mehar Kingx Gaming

    Mehar Kingx Gaming

    2 giorni fa

    This Channel Is Ocean Of Knowledge Of Space..

  • Luc Antoine

    Luc Antoine

    3 giorni fa

    So many times i thought he was done

  • Randall C

    Randall C

    3 giorni fa

    "So brown dwarfs are a sort of glowy gas giant that don't fit into any category very well. But we want to talk about stars - not failed, want-to-be stars."
    Even in space, there's racism! 😋 BROWN DWARF STAR LIVES MATTER!