The Largest Star in the Universe - Size Comparison

22 sep 2020
9 063 477 Áhorf

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:

This is how we make our living and it would be a pleasure if you support us!
Get Merch designed with ❤ from
Join the Patreon Bird Army 🐧


The Kurzgesagt voice is from
Steve Taylor:

700+ minutes of Kurzgesagt Soundtracks by Epic Mountain:
The Soundtrack of this video:
Many Thanks to our wonderful Patreons from who support us every month and made this video possible:
Keanu Vestil, Xavier, Antonio Tavano, Scott James, Camfifty5, Michael, Paul Barth, Christian Puelacher, Katie Barton, Cole Bowden, Andreas Rautner, Sovos, Alejandro Uresti, couchy, Bill Hochberg, John Specht, Lander Verhack, Vlad Mustiață, Oliver Kurtz, Mischa Blazer, Josh Yelavich, Islam Mohamed, Robrecht Cannoodt, Kirsty, Greenleaves, Jayson Lamanca, Nithin Thaha, Tristan Jackson, Even_skjeih, Mo Alawami, Jonas Brandão, Lily McAdams, Alejandro Rodriguez, Isaac Overmyer, Cooper Norton, Biblion, Stephen Zappia, Bodo Nuber, Samhain, Kyle Goff, jota jodra, Marc Bornträger, Filip Leszczyński, Влад Кальченко, NexusValhalla, Aleksandar Zivancevic, Silas Zander, Tijn Flinterman, Shrutika Umralkar, Or Bairey-Sehayek, Terri-Ann dela Cruz, Choltikan Phothong, Collin Carey, Champ, Marcela Oliveira, rbtpzk, Jamie Grall, LAI Oscar, Ralf P., Kuba, Ryan Giles, JoghurtWiesel, Timster Ruu, John Highet, Walmyr Carvalho, Perry Williams, Aldo Vicente, Peter Paj, Vanny Khon, Olga, Theeraphong Gasparini, destroymyarrogance, Martin Pietrowski, Josip Haramija, Champ, Carlos, Davi & Nicholas

  • 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 Nutshell29 dögum síðan
    • Wow😉

      Eros Conner Dela CruzEros Conner Dela Cruz5 klukkustundum síðan
    • Oh man

      Ashton aparatoAshton aparato7 klukkustundum síðan
    • Uranus is missing.

      Joshua RJoshua R17 klukkustundum síðan
    • R.c

      Bendu ZinnahBendu ZinnahDegi Síðan síðan
    • You forgot about UY scuti

      Stephanie EdieStephanie EdieDegi Síðan síðan
  • The poor poor brown dwarf...

    Peppa PigPeppa Pig2 klukkustundum síðan
  • something tells me the largest star has a strong desire to burn you

    KobiKobi2 klukkustundum síðan
  • so what you are telling me is that our universe is basically a bunch of bright, hot, multi-colored bombs with some rocks and clumps of gas around them?. You teach me so much in every video. I know more about the universe, humanity, concepts, etc. than how much I know Algebra.

    Matthew TeachoutMatthew Teachout3 klukkustundum síðan
  • put universe in a nutshell on steam

    juice factoryjuice factory3 klukkustundum síðan
  • Love how insignificant these this channel makes me... You're not the most important thing in the universe vibes

    Thando PhakelaThando Phakela3 klukkustundum síðan
  • this most likely triggered most of the audiences

    Jiaqi ZhaoJiaqi Zhao4 klukkustundum síðan
  • How does "brighter than the sun" even look like?

    Peter NjeruPeter Njeru4 klukkustundum síðan
  • the biggest star is VY canis majoris not stephenson 2-18

    Manju RijishManju Rijish4 klukkustundum síðan
  • love fairy tales :3

    victini2 Andrew the catholic American crusadervictini2 Andrew the catholic American crusader5 klukkustundum síðan
  • Your title is wrong from the start, the fact that the universe is infinite means we will never know what the largest star is, you idiot!

    Eric BurtonEric Burton5 klukkustundum síðan
  • the quality, just so good

    Kaden BKaden B5 klukkustundum síðan
  • Y’Know they’ve been interested in the sun recently and it’s pretty cool

    ParkerParker6 klukkustundum síðan
  • 내나이 31세 정말 재밌는 채널을 찾아서 기쁘다

    원샷원킬원샷원킬6 klukkustundum síðan
  • I thought UY scuti was the larger star

    Orestis KosmasOrestis Kosmas6 klukkustundum síðan
  • 0:42 me irl

    matt mattmatt matt7 klukkustundum síðan
  • scientists after mashing their keyboard after naming a new planet : *;D*

    Fludz !Fludz !8 klukkustundum síðan
  • I hope bright side also watch this chnnel he has 37k subs...

    Marx Wanderlei Clancy TaborMarx Wanderlei Clancy Tabor9 klukkustundum síðan
  • 아니 한국어 자막은 왜 중간에 없어

    Chanmin KimChanmin Kim9 klukkustundum síðan
  • U don't even know who is uy scuti

    yik waihinyik waihin9 klukkustundum síðan
  • Loud, unpleasant music makes it hard to hear the commentary. Why do video makers think such is necessary? Thumb down on what could have been a very interesting piece.

    Robert SeviourRobert Seviour9 klukkustundum síðan
  • Cue Existential crisis

    Gerardo ArevaloGerardo Arevalo10 klukkustundum síðan
  • Stephenson : hah I'm the biggest! The universe : stop lying to yourself Multiverse : your the one universe Gigaverse : u sure? The Infinity : all of you are B A B I E S

    Rocel NidoRocel Nido10 klukkustundum síðan
  • Yes the largest star is gargantuous but the camera is GIGANTIC as it can capture the whole size of it

    Dark ParadeDark Parade10 klukkustundum síðan
  • UY Scuti is the largest star in the Milky Way . It is a red hypergiant near the center of the Milky Way and will explode into a hypenova , a very luminous type of supernova . The sun would look like a person compared to a four-story building .

    Manpreet NandaManpreet Nanda10 klukkustundum síðan
  • TL:DW 10:13 "The Universe is BIG. "There are many large things in it." No sh1t.

    Kingson SofaruKingson Sofaru10 klukkustundum síðan
  • There are "out app purchases to download" no in app purchases

    Neelam ShuklaNeelam Shukla10 klukkustundum síðan
  • This is too big for my tiny brain to handle

    Kelda SKelda S11 klukkustundum síðan
  • Such nonsense.

    charlie princecharlie prince11 klukkustundum síðan
  • largest star we ever discovered stephenson 2-18 sad uy scuti noises

    dexon777dexon77711 klukkustundum síðan
  • Stephenson 2-18 is the biggest star UY scuti: *am i a jaoke to you?*

    Rainus TabalonRainus Tabalon12 klukkustundum síðan
  • Brown Dwarf Lives Matter.

    Remaining AnonymousRemaining Anonymous13 klukkustundum síðan
  • incredible ~ ~

    R A R E V A L U E O0R A R E V A L U E O013 klukkustundum síðan
  • What if the biggest star on the universe is hiding a bigger star behind it?

    DavidDavid13 klukkustundum síðan
  • I think he's talking about Cary Huang and Michael Huang from jacknjellify

    GIENG DGIENG D14 klukkustundum síðan
  • “Failed stars that are a big dissapointment to their moms” Celebrities in a nutshell.

    The DorkateerThe Dorkateer14 klukkustundum síðan
  • What about beetle juice the ☀️ sun

    Jack KimJack Kim14 klukkustundum síðan
  • Hi people from @CaryKH

    KiddyNamo_eXpldKiddyNamo_eXpld15 klukkustundum síðan
  • I don’t think our brains will ever be able to comprehend the actual size of the universe

    _SB__SB_15 klukkustundum síðan
  • sometimes lying is okay

    Mike NickMike Nick15 klukkustundum síðan
  • I'm a disappointment to

    zoey artszoey arts16 klukkustundum síðan
  • Where is Uranus in the app? You have Pluto and all of the planets except Uranus.

    Joshua RJoshua R17 klukkustundum síðan
  • He's ruined the word 'tremendous' and 'billons' :(

    Fionnbarr Mc GovernFionnbarr Mc Govern18 klukkustundum síðan
  • Bro he is literally killing this brown dwarf with insults

    Alternate _YTAlternate _YT19 klukkustundum síðan
  • Justice for brown dwarf

    Harry Moody ReactionsHarry Moody Reactions19 klukkustundum síðan
  • Him: 1000 Degrees Celsius Me, An American: What

    Matthew Outten JrMatthew Outten Jr20 klukkustundum síðan
  • no he is so smart ok

    Chenlu ZhaoChenlu Zhao21 klukkustund síðan
  • If stephenson explodes will the whole solar system die?

    Not GokuNot Goku22 klukkustundum síðan
  • Girl: how big is know...😉 Me: Stephenson 2-18

    Sam HolmesSam Holmes22 klukkustundum síðan
  • What about I'm scuit

    VinceZilla KingoftheKidsVinceZilla KingoftheKids23 klukkustundum síðan
  • Aye no!!! Dont do that to brown dwarf You ain't a disappointment You're amazing!!

    Multi oneMulti one23 klukkustundum síðan
  • Привет :3

    Максим КиреевМаксим Киреев23 klukkustundum síðan
  • OK, We TBH can barely see past the milky way...yet we know how big the universe is? We know how big the supposed biggest sun is? We seem to know alot about the so called universe but have not travelled to our moon really or have we managed to get past the lethal van allen belt which Nasa admits we cant get passed. Wakey wakey guys open your eyes, dont be a sheeple

    DD23 klukkustundum síðan
    • Oh dear. 🤦‍♂️

      John HazenhousenJohn Hazenhousen16 klukkustundum síðan
  • the fun part is that on 1080p the Sun compared to Stephenson 2-18 is 1 pixel by 1 pixel

    BoneBoneDegi Síðan síðan
  • Netflix has to put these videos on its platform, they are very interesting. But they prefer to do bad series and movies like Sex Education, Monet Heist, Enola Holmes etc.

    Gaspar KvartaGaspar KvartaDegi Síðan síðan
  • Pls add UY scuti and the “siriuses”!

    Stanlie ScutcherStanlie ScutcherDegi Síðan síðan
  • so now tell me how WE HOOMANS can get even such a info ? Have anyone see it ? Did anyone was on any star ever ? great ...

    Peoples ChoicePeoples ChoiceDegi Síðan síðan
  • Our sun.

    BenPenguin PhillipsBenPenguin PhillipsDegi Síðan síðan
  • UY Scuti : I'm the largest star. Stephenson 2-18 : YOU!! Shall not! PASS!!!

    Fuck off Stupid AnimeFuck off Stupid AnimeDegi Síðan síðan
  • Amazing stuff.

    Nugget of Truth - Eric KingNugget of Truth - Eric KingDegi Síðan síðan
  • stars after red hypergiants: kaboom

    Claudia Anel Valencia CarmonaClaudia Anel Valencia CarmonaDegi Síðan síðan
  • how to make a "star´´ yeet 90 Jupiters at each other. lol

    Claudia Anel Valencia CarmonaClaudia Anel Valencia CarmonaDegi Síðan síðan
  • i am always laughing when i meet someone with "big ego"

    travis jaycetravis jayceDegi Síðan síðan
  • 한글자막이 나오다 마는데?

    피쥐디:1주일에 한번씩 배필영상올림피쥐디:1주일에 한번씩 배필영상올림Degi Síðan síðan
  • kurzgesagt pls teach us about star constellation and how to know where is the north star?

    ImDeadInside ImDeadInsideImDeadInside ImDeadInsideDegi Síðan síðan
  • If this is actually true, we ate 100000000000×smaller than microatoms

    •pROBlemz• CODM•pROBlemz• CODMDegi Síðan síðan
  • No one cares

    General GrievousGeneral GrievousDegi Síðan síðan
  • I wish the sun was blue like those bigger stars

    Christian WurtzbacherChristian WurtzbacherDegi Síðan síðan
  • Subtitles from other countries in this video do not come from 1:26 here.

    New GuestNew GuestDegi Síðan síðan
  • In universe in a nutshell the song is perfect for meditation.good luck team kurzegast!!

    sailaja rushisailaja rushiDegi Síðan síðan
  • 👏👏

    Fen KlasörüFen KlasörüDegi Síðan síðan
  • this video make me think that human was nothing to god/jesus

    ULTIMATERZ gamingULTIMATERZ gamingDegi Síðan síðan
  • The biggest star in the whole galaxy is UY SCUTI.

  • Came here for the "your mum" jokes. Didn't find any. Is the internet becoming a nice place?

    FlipmindFIlmsFlipmindFIlmsDegi Síðan síðan
  • All space agencys are betraying people the camera is never pointed towards the dark matter to see the alien worlds its official

    Mr YusufMr YusufDegi Síðan síðan
  • “You would be very dead” I would be very dead

    Chanti MogantiChanti MogantiDegi Síðan síðan
  • We are the Coronas nowXD

    BOI BOIBOI BOIDegi Síðan síðan
  • the real largest star is Kurzgesagt

    BopperDuppetBopperDuppetDegi Síðan síðan
  • Anyone here ever heard of Eric Dubay, who is the king of flat earth? Research flat earth. Because earth is flat and stationary.

    MrAlanfbiMrAlanfbiDegi Síðan síðan
    • By all means, research flat Earth. And try not to laugh.

      John HazenhousenJohn Hazenhousen16 klukkustundum síðan
    • Eric Dubay is a moron. A stationary earth breaks all the laws of physics. Even the basic ones. Like newton's second law.

      AL CollAL Coll21 klukkustund síðan
  • Can you put down a background

    Isaiah Robert’s ChannelIsaiah Robert’s ChannelDegi Síðan síðan
  • Sure sure.. fake fake fake.. 0 proof

    Steve HillSteve HillDegi Síðan síðan
    • @Steve Hill Lol are you sad that you failed science class? Everyone who studies physics cares about lagrangians. I may be a nerd, but you're a moron who thinks he's smart. Answer the goddamn question noob

      AL CollAL Coll2 klukkustundum síðan
    • @AL Coll who cares nerd, enjoy your unprovable pseudoscience, accept that its fake, u will b better off in life, or maybe u have seen proof that i havent, send a link to just one real picture of space and the planets and I’ll reconsider

      Steve HillSteve Hill3 klukkustundum síðan
    • @Steve Hill Nice, much cool. I have a question. After plugging the Lagrangian into the Euler Lagrange equations, what law of motion shows up?

      AL CollAL Coll6 klukkustundum síðan
    • @AL Collenjoy your pseudoscience useful idiot..

      Steve HillSteve Hill17 klukkustundum síðan
    • @AL Coll ok idiot, enjoy your unicorns and rainbows and delusions

      Steve HillSteve Hill17 klukkustundum síðan
  • I think planets are dead old stars and gas giants are stars not yet expoldy.

    joe boxerjoe boxerDegi Síðan síðan
  • Hey turkish language is too late and not clearly we want watch kurzgesagt too

    Edirne BoksEdirne BoksDegi Síðan síðan
  • sirius A:haha i'm big b centauri:rlly im bigger than you bro r136a1:dont tell me that your bigger than me xd gacrux:im BIGGER >:( pistol star:wdym im bigger than you :| rho cassiopeiae:IM BIGGER stephenson 2-18:im the biggest star :-)

    DeanbloxgamingDeanbloxgamingDegi Síðan síðan
  • 2:30 “They are small and not very hot” That’s kind of relatable

    Bob The Meme ManBob The Meme ManDegi Síðan síðan
  • Have you ever realized that the unstoppable marching of time that is slowly guiding us all towards an inevitable death?

    Bob The Meme ManBob The Meme ManDegi Síðan síðan
  • You forgot to mention orange dwarfs

    Joseph BoughtonJoseph BoughtonDegi Síðan síðan
  • We don't have to hate on kurtzgesaught. He did is best at explaining things

    Joseph BoughtonJoseph BoughtonDegi Síðan síðan
  • I'm starting to lose my respect to the Sun, he was just showing off to us, but he's not in the big league lulz.

    EUROPOL Intl. S.EUROPOL Intl. S.Degi Síðan síðan
  • "Failed stars, that are a huge disappointment to their *moms*" Rip brown dwarf.

    DragonSightsDragonSightsDegi Síðan síðan
  • Subtitles doesnt work.

    Alan EsAlan EsDegi Síðan síðan
  • Why can I relate so much with the brown dwarf?

    Shockwave32 Gaming&MoreShockwave32 Gaming&MoreDegi Síðan síðan
  • You forgot about UY scuti

    Stephanie EdieStephanie EdieDegi Síðan síðan
    • not the biggest anymore

      AL CollAL Coll21 klukkustund síðan
  • and YT Canis Mayoris?

    ShadowChrisAftonShadowChrisAftonDegi Síðan síðan
  • Stars are kinda like Pheonix's, aren't they? They both have to do with fire/heat etc, and are reborn from their ashes.

    nightlypiano41nightlypiano41Degi Síðan síðan
  • Anyone else yelling where’s uy scuti?

    I Make Excuses No CapI Make Excuses No CapDegi Síðan síðan
  • IN A Nutshell is current my favorite channel

    SnorefestSnorefestDegi Síðan síðan
  • i have seen the last scene of the stars so many times, i just love it

    Daniel BroncalesDaniel BroncalesDegi Síðan síðan
  • Ton 618 OPPPP

    Mahavir PrasadMahavir PrasadDegi Síðan síðan
  • From now on I identify as a brown dwarf.

    666Squarepants666666Squarepants666Degi Síðan síðan