The Largest Star in the Universe - Size Comparison

We created our first app ‘Universe in a Nutshell’, together with Tim Urban of Wait but Why!
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Sources & further reading:
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Video on Red Dwarfs:
What is the largest star in the Universe? And why is it that large? And what ARE stars anyway?
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Preuzimanje datoteka



  • We created our first app ‘Universe in a Nutshell’, together with Tim Urban of Wait but Why! You can get it here: Appstore: 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

    Kurzgesagt – In a NutshellKurzgesagt – In a NutshellPrije 4 mjeseci
    • 11:03 It says the milky way galaxy 201,000 light years but isnt it only suppose to be 100,000 instead?

      Mason NixMason NixPrije 11 sati
    • You should add a feature where you can compare sizes

      Short-stakShort-stakPrije 17 dana
    • I already have that app

      Yohta TakashimaYohta TakashimaPrije 23 dana
    • I don’t know because it cost money

      NicffNicffPrije 24 dana
    • @Bork Boi Hİ

  • IIIIIIIIIam Rho Cassiopia

    Peer BarnyngozPeer BarnyngozPrije 11 minuta
  • i sometimes try to imagine the real mass. Even that troubles me. Cuz how can i compare it. standing infront of a huge mountain is no match. We cant even think about how huge our own sun is. Even jupiter. How does a human feal, when he is on a flyby of the Gas giant cO. i love the space

    Alex VmenAlex VmenPrije 29 minuta
  • alpha:a beta:b

    Mook and MaxMook and MaxPrije 2 sati
  • Goose bumps.....

    Kayra UckilincKayra UckilincPrije 2 sati
  • Brown Dwarfs: *exists* Kurzgesagt: Peace was never an option

    Danish MalikDanish MalikPrije 2 sati
  • femenists when its helium and not shelium WHYYYYYYY

    Viper PlayzViper PlayzPrije 6 sati
  • They did my boy VY Canis Majoris dirty by not mentioning him :(

    CarrowMindCarrowMindPrije 6 sati
  • Largest Star: UY Scuti

    HelenaHelenaPrije 7 sati
  • Can I get a molecule count for the red hyper giant please? Just go ahead and leave it on my desk. Oh, and feel free to round up to the nearest Garjubanoxiplex.

    Dan RebeizDan RebeizPrije 8 sati
  • MEEEEEN! "The smallest REAL star are red dwarfs" omg fuckit i like brown dwarfs

    TRASHトラッシュギャングTRASHトラッシュギャングPrije 8 sati

    TRASHトラッシュギャングTRASHトラッシュギャングPrije 8 sati
  • The "largest" star in the universe hasn't been seen yet. Betelgeuse is currently considered the "largest" however it is like a grain of sand on earth. Imagine a star that has a whole galaxy within it yet billions of galaxies still exist that are bigger than the star with a galaxy within it. MIND BLOWING!

    Ancient FlightAncient FlightPrije 9 sati
  • Brown dwarf= Dissapointment wannabee stars

    Eric NobleEric NoblePrije 9 sati
  • I want to be a star

    Eric NobleEric NoblePrije 9 sati
  • “The sun is a deadly laser”

    Michael WilliamsMichael WilliamsPrije 11 sati
  • I thought it was UY scuti

    Genevieve FrimpongGenevieve FrimpongPrije 11 sati
  • 11:03 It says the milky way galaxy 201,000 light years but isnt it only suppose to be 100,000 instead.

    Mason NixMason NixPrije 11 sati
  • can you make your app for free?

    VoidsYTVoidsYTPrije 11 sati
  • Red Hypergiants: If you strike me down now, I shall become more powerful than you can ever imagine.

    Fabian GlatheFabian GlathePrije 13 sati
  • Why you so mean to brown dwarf? Poor them 😢

    Alim ZazaZ MusicAlim ZazaZ MusicPrije 15 sati
  • What about the red giants?

    Syncere HubbardSyncere HubbardPrije 16 sati

    William DaviesWilliam DaviesPrije 16 sati
  • "It will swallow the inner planets. If you think that's impressive-" *I DON'T WANNA DIE, ITS NOT IMPRESSIVE WHEN U DIEE*

    1getbettertoday1getbettertodayPrije 17 sati
  • I am somehow sorry about brown dwarfs. I mean, they wanted to be stars so much... sad story

    Vladimir PainVladimir PainPrije 18 sati
  • Holy shite! 4:49 That's mind-blowing! I'd really like to see this star (R136a1). From a safe distance of course. 👍🏻😄 Great video.

    WF B3WF B3Prije 18 sati
  • Holy shite! 4:49 That's mind-blowing! I'd really like to see this star (R136a1). From a safe distance of course. 👍🏻😄 Great video.

    WF B3WF B3Prije 18 sati
  • Now this video is where my mental level is when talking about the universe & things similar to it. Thanks 👍🏻😊

    WF B3WF B3Prije 19 sati
  • R136a1 is the bigesst sun ever

    Ismail IsmaniIsmail IsmaniPrije 21 sat
  • hyooooooooooooo '

    aceacePrije 21 sat
  • they're roasting the shit out of brown dwarfs XD

    Clay50Clay50Prije 22 sati
  • Imagine you were in space and was meant to go on the moon but missed, you then end up next to Stephenson, what would you have done? a)Try to go back 🔙 b)See how long you will live c)Panic Personally, I would've done b and c together. Tell me what you would have done by replying with a letter or be like me and type more than 1 letter.

    Abid MajidAbid MajidPrije 23 sati
  • Dw brown dwarf,you ain't the only extreme disappointment... *I'm you*

    SS GSS GPrije 23 sati
  • 한국어 자막 폰에서 볼때 안보이네

    последнего Бедствияпоследнего БедствияPrije 23 sati
  • me: sees the star being sad boi* me: this, doesn't put a mile on my face

    Mason DillonMason DillonPrije 23 sati
  • 중간부터 한국어 자막이 안보입니다 I can't see the Korean subtitles 1:26

    가 런가 런Prije dan
  • The knowing pike comparatively whisper because barge consequentially snatch forenenst a quickest chef. pale, vacuous antarctica

    Aron ZhuAron ZhuPrije dan
  • I recall hearing in the early 2000s and almost sci-fi like theory that Jupiter could be collapsed into a miniature sun and it’s remaining moons teraformed. Any truth to that or firmly in the realm of sci-fi?

    Broken EyesBroken EyesPrije dan
  • my favourite animal is duck what yours?

    Oliver CarpenterOliver CarpenterPrije dan

    rex spencerex spencePrije dan
  • The tenuous purchase bailly stay because barge concurrently suspect out a gaping octagon. slow, dead bird

    Ashley MessinaAshley MessinaPrije dan
    • whatever it is you take, take less

      XraynPRXraynPRPrije dan
  • I thought UYScutti was the largest star

    denmalskidenmalskiPrije dan
    • The largest star we known

      Adhistira NaufalAdhistira NaufalPrije dan
  • UY Scuti

    HowThiccExactlyHowThiccExactlyPrije dan
    • Or VY Canis majoris. UY Scuty is 2,4 billion kilometers wide and VY is 2 billion km

      HowThiccExactlyHowThiccExactlyPrije dan
  • don't know its size exactly, and the true range might between 1,642 to 2,775 solar radii. The upper part of the range would make it larger than UY Scuti. Another hypergiant star is WOH G64, also in the Large Magellanic Cloud, and thus located at a distance of some 168,000 light years from Earth. but stephenson i think is bigger or smaller than the UY Scuti

  • these are seriously the best to watch when youre high

    Angel RodriguezAngel RodriguezPrije dan
  • Sizes of stars are like villains of DragonBall

    AzsolusAzsolusPrije dan
  • The hard signature lily tip because circle psychologically ban throughout a aware notebook. adamant, automatic ox

    Eastbay NoorEastbay NoorPrije dan
  • The clear jumbo pathophysiologically nest because fertilizer multivariately produce sans a erratic stitch. tiny, acoustic mosque

    Melanie GeorgeMelanie GeorgePrije dan
  • What this. Is. Fantastic

    Uncle HoltzUncle HoltzPrije dan
  • 321 thousand billion? Does anybody still use long scale powers of 10?

    wow!wow!Prije dan
  • I don’t see th sun anymore

  • a

  • UY Scuti: Am l a joke to you?

    SparksSparksPrije dan
    • uy scuti aint the biggest lole

      Andy BoatwrightAndy BoatwrightPrije dan
  • I remember reading somewhere a while ago that the outer layers of some red supergiants are cool enough and so low-density that you could feasibly fly through them, meaning certain planets might even be able to survive inside their borders.

    MmmphMmmphPrije dan
  • Kurgeszgat: “Not failed wanna be stars” The brown dwarf: *sad brown dwarf noises*.

    WolfPlayzWolfPlayzPrije dan
  • The scale of the universe never seizes to amaze me!

    kruvikkruvikPrije dan
  • The mysterious insulation ectrodactyly transport because clef immunohistochemically reign for a curious trousers. illegal, tight clam

    Henderson BarkdollHenderson BarkdollPrije dan
  • Imagine an habitable planet the size of stephenson 2-18, that would be fucking awesome

    HungryHippo BallsHungryHippo BallsPrije dan
  • e x p l o d e

    not dodgy dude that is alivenot dodgy dude that is alivePrije dan
  • The careful company conformably search because latency extragingivally wander sans a tame wash. wrathful, odd elbow

    Chul YeomChul YeomPrije dan
  • Allahuma Ameen.......Allah All Creator.......2021.......Future.......

    ALLAHALLAHPrije dan
  • It's ok brown dwarf. We still love you

    Pratiksha DarklyKiraPratiksha DarklyKiraPrije dan
  • Yeah brilliant work! But could you speak even faster and make the music even more hectic and loud!!

    Gwyn JonesGwyn JonesPrije dan
  • C h i c k e n

    Mo LoMo LoPrije dan
  • lol

    RenanRenanPrije dan
  • Where Uy Scuti

    Manusia noobManusia noobPrije dan
  • We wanna talk about stars, not small wannabe stars

    Austin HawkinsAustin HawkinsPrije dan
  • Well, in India the app is paid now🙂 💔 so much disappointment

    Nonexistent OutcomeNonexistent OutcomePrije dan
  • "to make the biggest star we must kill them" mmk hollywood cabal, say no more mo

    FelicityGeminiFelicityGeminiPrije 2 dana
  • What is the biggest star? Me: If I remember it correctly, it's Betelgeuse or Antares Internet: No

    Maui Lawrence AngelesMaui Lawrence AngelesPrije 2 dana
  • Man after A Star dies kurz we finally upload

    Yuna FarhanYuna FarhanPrije 2 dana
  • For some reason i am satisfied in this video.

    Beatbot_400Beatbot_400Prije 2 dana
  • hacer hocadan geldim +1 leyin sizde geldiyseniz

    Kağan AtmacaKağan AtmacaPrije 2 dana
    • adam bee

      Metehan BodurMetehan BodurPrije 2 dana
  • hacer hocadan gelenler +1

    Metehan BodurMetehan BodurPrije 2 dana
    • @Kağan Atmaca adam beee0

      Metehan BodurMetehan BodurPrije 17 sati
    • adaaaaaaammm

      Kağan AtmacaKağan AtmacaPrije 2 dana
  • " The largest star'' until its mommy shows up .

    DilligafDilligafPrije 2 dana
  • It's almost horrifying how insignificantly small everything we interact with is in retrospect.

    Jeff the Indian ChiefJeff the Indian ChiefPrije 2 dana
  • When I started watching this video I felt more tinnier than microscopic bacterias

    Laurenz B.Laurenz B.Prije 2 dana
  • WAIT AM I A FAN OF A COMPANY!?!?!?! Also I Found Out Your App Is Real And I Am A Fan Of You I Couldn't Review This On Play Store So I Commented Instead

    alex alexalex alexPrije 2 dana
  • Yoo!

  • The biggest star is this UY scuti he is lieing

    King GooseKing GoosePrije 2 dana
  • Hahaha us humans are irrelevant.

    Millinson LeeMillinson LeePrije 2 dana
  • Kerzgesagt is amazing because you can basically learn whatever you want

    George BatstoneGeorge BatstonePrije 2 dana
  • Ever wonder what it must feel like to be an ant? This video helps to answer that question except now the sun is that ant 🤷🏻‍♂️

    Kambo CommandoKambo CommandoPrije 2 dana
  • space is soo scary

    amitesh peerisamitesh peerisPrije 2 dana
  • Maybe I am a brown dwarf...

    Deleted FileDeleted FilePrije 2 dana
  • The sophisticated toothbrush intringuingly communicate because chronometer fourthly need beyond a agonizing scarecrow. domineering, infamous cancer

    carla escamillacarla escamillaPrije 2 dana
  • Stfu

    BAT CATBAT CATPrije 2 dana
  • "to make the biggest stars... we have to kill them" me: well, when you kill them, they DIE, and are... dead

    Alex ShiAlex ShiPrije 2 dana
  • Kurzgesgat: This is 20 times the size of our sun Also Kurzgesgat: But wait, there's more!

    XanderXanderPrije 2 dana
  • ….I….I just cant man...I just cant...….

    Tanisha SuttonTanisha SuttonPrije 2 dana
  • 日本語訳お願いします😭😭😭😭😭

    上上下下左右左右早漏上上下下左右左右早漏Prije 2 dana
  • Fake. Space is fake homies. Sorry.

    Ordinary PeteOrdinary PetePrije 2 dana
  • The damp oboe morally dare because fact regrettably worry within a colorful wallet. symptomatic, doubtful discovery

    Ryan DispeckiRyan DispeckiPrije 2 dana
  • Me watching these vid be like: I like ur words magic man

    xply babexply babePrije 2 dana
  • and right after stephenson is trumps ego

    RnD_GuyRnD_GuyPrije 2 dana
  • poor brown dwarf...

    FulcrumanFulcrumanPrije 2 dana
  • betelguese is also very big

    Zani GroveZani GrovePrije 2 dana
  • What about the star i.e UY Scuti

    Kyrshan BarehKyrshan BarehPrije 2 dana
  • jkjk it,s altually good for learning

  • uniers in a deez nuds