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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  1. Kurzgesagt – In a Nutshell

    Kurzgesagt – In a Nutshell

    2 maanden geleden

    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

    • jaswinder singh

      jaswinder singh

      2 uur geleden

      real question is how do scientiest find all this info. , it is no less than being god.

    • Femke Aben

      Femke Aben

      Dag geleden

      The app doesn't work on my device

    • Jason


      Dag geleden

      I cant get the app :(

    • 7329


      2 dagen geleden

      Mr. Kurzgezakt, the Korean language support on this channel is not going smoothly. Please help me.

    • GojiraGuy 1954

      GojiraGuy 1954

      2 dagen geleden

      What happened to the app being free

  2. duru yalçın

    duru yalçın

    25 minuten geleden




    40 minuten geleden

    Everything in this video is true because of the narrator's accent.

  4. Rang Phan

    Rang Phan

    Uur geleden

    if you want God to forgive you dont commet here just go to the church and pray.

  5. Gamer YT

    Gamer YT

    Uur geleden

    Hey incroghraphic have some respect for brow stars

  6. Liszt Franz

    Liszt Franz

    2 uur geleden

    want you to add Japanese subtitle!

  7. Nobby Nobbs

    Nobby Nobbs

    2 uur geleden

    "Giving it's gas back to the galaxy" That is what I'm going to call my farts from now on

  8. Super Liam’s Squad Adventures

    Super Liam’s Squad Adventures

    2 uur geleden

    Please make a video of the alien planet and the cousins of earth.

  9. Nobby Nobbs

    Nobby Nobbs

    2 uur geleden

    Brown dwarves are cute

  10. A random comment

    A random comment

    2 uur geleden

    I felt like I was watching a Halo scene



    3 uur geleden

    from France: Animation magique! Je me demande comment vous faites celà et, je vous admire pour la clarté des explications; Merci, Merci, Merci beaucoup!

  12. Samson Graham

    Samson Graham

    3 uur geleden

    staaaaph my ego can't take how small I am

  13. Emerson Gonzalez

    Emerson Gonzalez

    3 uur geleden

    He Kuzargt are we gonna get a brown drawf video soon?

  14. Peanut


    3 uur geleden

    who comes up wit these names tho

  15. steve606


    3 uur geleden

    Kurzgesagt sometimes: *you were nothing and your conscience was nothing before you were born and it will return like that when you die. Progress is pointless because at the end of the world it'll be gone and we won't remember it* Kurzgesagt in this video: *BROWN DWARF ST00PID LOL*

  16. Bruna


    3 uur geleden

    I love the universe and this channel ♡

  17. DaNZ234


    4 uur geleden

    why im feeling like watching a movie?

  18. Louiji


    4 uur geleden

    Hey! Apologize to brown dwarf stars!

  19. freethinker4liberty


    5 uur geleden

    Rocky planets don't get vaporized inside red giants, especially at the distance of Earth. It is unclear exactly what will happen, but while the atmosphere and all surface features will definitely be gone, the fact is the density of our sun at the distance of Earth once it swells will only be a few grams per cubic meter, very hot and energetic, but nowhere near enough to affect the planet structure. Even Mercury may survive, but again, this is unclear as we don't really understand what affect highly energetic but ultra thinly distributed particles have on solid dense matter. We have found many planets that orbit white dwarfs, which confirms that planets survive the red giant phase of stars with regularity.

  20. Georgia Countryball Awesome world

    Georgia Countryball Awesome world

    5 uur geleden

    Hey star out there is Beetlejuice

  21. Annie Sandhunter

    Annie Sandhunter

    5 uur geleden

    Quality 10/10

  22. Dāvids Stalidzāns

    Dāvids Stalidzāns

    7 uur geleden

    This sounded a bit like the introductory to the Warhammer 40K and the Imperium of Man. Not complaining though. The God Emperor protects.

  23. Karl angelo Arcenas

    Karl angelo Arcenas

    10 uur geleden

    The narrator Sounds like toughty 1

  24. Yash Singh

    Yash Singh

    10 uur geleden

    But I thought uy scuti is the largest

  25. ELTiagor


    11 uur geleden


  26. Jim James

    Jim James

    11 uur geleden

    Largest star in the "observable" Universe!

  27. da trucker boomer Flip in boomer

    da trucker boomer Flip in boomer

    11 uur geleden

    I have watched this episode at least 10 times

  28. Zaosh Kotwal

    Zaosh Kotwal

    11 uur geleden

    1:14 I can relate to the brown dwarf

  29. A Mouse Business mouse

    A Mouse Business mouse

    11 uur geleden

    ThE sUnS a PlAnEt IdOiTs- mE 3030

  30. Reece Sullivan

    Reece Sullivan

    12 uur geleden

    isn’t this technically all just theories cuz we don’t actually know if there are layers in a sun and brown dwarf

  31. P J

    P J

    12 uur geleden

    Toh main kya job chod dun?

  32. Ashrif Abdullah

    Ashrif Abdullah

    13 uur geleden


  33. Tsrenis


    13 uur geleden

    Dweez nutcse

  34. wertysniper


    13 uur geleden

    wait but why a stick figure

  35. Waylen Smithers

    Waylen Smithers

    13 uur geleden

    I’m scared

  36. MG42pillbox


    13 uur geleden

    More cartoons for the atheists living in a fairytale.

    • N. M.

      N. M.

      11 uur geleden

      Have fun in your flat earth fairytale. Netflix should make a reality show in which you flat earthers try to find the edge.

  37. Rachel Freeland

    Rachel Freeland

    14 uur geleden

    There’s only one sun in the universe and it’s ours. This is bullshit. It all is. Stars are not distant suns, they’re simply lights in the sky. Wake up people. Earth is flat.

  38. SpaceChicken


    14 uur geleden

    Stephenson kind of thicc

  39. ElShaboPants


    14 uur geleden

    if stephenson 2-18 it's so big, then why won't he fight me?

  40. Frank Fencepost

    Frank Fencepost

    14 uur geleden

    Don't see how they know it's the largest sun in the universe it should say in the known universe

  41. Sebastian Mayer

    Sebastian Mayer

    15 uur geleden

    what if I left universe -- in a nutshell a 1 ⭐ reveiw?

  42. Timothy Ortiz

    Timothy Ortiz

    16 uur geleden

    So why waste time on dead planets. Get to the live ones and trash it too.

  43. slipknot 1230

    slipknot 1230

    16 uur geleden

    10M views for thus kind of shit??😂

  44. Tony B

    Tony B

    16 uur geleden

    Great video, really enjoyed the humour :-)

  45. Tach Nang

    Tach Nang

    17 uur geleden


  46. goognam goognws

    goognam goognws

    17 uur geleden

    Here with these videos you can witness German thinking style. It remembers me of German car builders talking about their latest high technology inventions, it's just the subject that is different, but personality in the thinking style is unmistakable german.

  47. CPT Tightpants

    CPT Tightpants

    17 uur geleden

    Man, they did those Brown Dwarfs (Dwarves?) dirty

  48. Ulices Bamaca

    Ulices Bamaca

    17 uur geleden

    Why does he gotta do my boi Brown Dwarf like that 😢

  49. Mirul Husni

    Mirul Husni

    18 uur geleden

    There is a way to prevent the earth to be engulfed by sun. Its oike wandering earth film.

  50. JaugerPlays


    19 uur geleden

    And you would be very dead! :D

  51. James Maxwell

    James Maxwell

    19 uur geleden

    I feel sorry for that wanna be star man, shit got go me

  52. Vo Tuan Tu

    Vo Tuan Tu

    20 uur geleden

    The careful colt intuitively step because river scilly guard circa a clear possibility. crabby, future futuristic quince

  53. Feama Studios

    Feama Studios

    20 uur geleden

    Idiots gonna believe this. 😑

    • MC GamerSZ

      MC GamerSZ

      15 uur geleden

      then dont believe in science your life will be full of lies

  54. Aimee Wadznah

    Aimee Wadznah

    20 uur geleden

    I like your videos it's very detailed and my eye feel good to this, not just that I learn science and english at the same time cause my country is from Malaysia, I'm very love your videos so much keep up the good work👍

  55. Aimee Wadznah

    Aimee Wadznah

    20 uur geleden

    I might want to show your channel to my science teacher

  56. Ishaan Sharma

    Ishaan Sharma

    22 uur geleden

    And some people think they are the center of universe. 🤷🏻‍♂️

  57. weebster 69

    weebster 69

    22 uur geleden

    im gay for your voice

  58. MechanicPluto24


    22 uur geleden

    Fun fact, if the Sun was the size of a grain of dust, Stephenson 2-18 would be bigger than a basketball, and TON 618 would be bigger than a three-story house.

  59. Nipho Ndlela

    Nipho Ndlela

    23 uur geleden

    That transformers music though

  60. The Gentleman

    The Gentleman

    23 uur geleden

    Kurzgesagt: says coronavirus NLcameras: you weren’t supposed to do that!

  61. 765kvline


    23 uur geleden

    I really enjoy our star. Pleasant, given us good service over the ages, good color combinations, right size, gives us warmth and keeps our solar system together and gives us a free ride around the stellar center. All in all, I'd say, let's keep our present star. Let's not replace it yet.

  62. Kampfh


    23 uur geleden

    I feel bad for the Brown Dwarf. It didn't ask to be born that way :(

  63. Renee Redenius

    Renee Redenius

    Dag geleden

    the brithtside is beeter

  64. Cody Hald

    Cody Hald

    Dag geleden

    Now I just wanna give brown dwarfs a hug 😔

  65. السيد قشطة

    السيد قشطة

    Dag geleden


  66. Ava Shotwell

    Ava Shotwell

    Dag geleden

    So the end of the world will probably not be a meteorite fall but instead the sun becoming large in its final stage Interesting 🤔

    • Baguette Gott

      Baguette Gott

      21 uur geleden

      It is the only *certain* end of the world. It's incredibly likely that other shit will happen way before that (after all, we're gonna have to wait another 4.5 billion years for the end stages of our sun's life). But if any life form somehow got through everything in the meantime... yes, that would be the end of the line fore them.

    • Sans


      Dag geleden

      No we well most likely nuke our selves or get hit by a meteorite

  67. Miles Cable

    Miles Cable

    Dag geleden

    this is just awe inspering

  68. Weirqueen


    Dag geleden

    Why you gotta do Brown Dwarfs like that--

  69. Samuel Araújo Medeiros

    Samuel Araújo Medeiros

    Dag geleden

    So... Does this mean that stars have been born and died since the Dinosaurs went extinct?

  70. Knee Deep in the Doot

    Knee Deep in the Doot

    Dag geleden

    yes i would be very dead

  71. Xavier Fuentes-George

    Xavier Fuentes-George

    Dag geleden

    I think I brain am broke

  72. Sakshi Khatavkar

    Sakshi Khatavkar

    Dag geleden

    We must PROTECT the Brown Dwarfs at ALL COSTS!!!!!

  73. Killerboats73 B.

    Killerboats73 B.

    Dag geleden

    What about UY scuti

  74. Connie Scott

    Connie Scott

    Dag geleden

    The grateful gratis slipper molecularly crush because oyster pertinently beg via a pleasant train. raspy, daffy calf

  75. Kye Hendrickson

    Kye Hendrickson

    Dag geleden

    Kurzgesagt out here tearing into the brown dwarf

  76. Jake Moro

    Jake Moro

    Dag geleden

    somehow everything is against human life… one day our star will grow explode were dead,and well then we are extinct. what Is the point of life on this planet anyway we kill each other all the time. there has to be something more important… What could it be?

  77. jour m'sieu 32

    jour m'sieu 32

    Dag geleden

    from France: Animation magique! Je me demande comment vous faites celà et, je vous admire pour la clarté des explications; Merci, Merci, Merci beaucoup!

  78. Ker Loz

    Ker Loz

    Dag geleden

    > who’s surviving 2020?

  79. Sonny Gaukler

    Sonny Gaukler

    Dag geleden

    I think they forgot about uy scuti

    • Arnout H

      Arnout H

      23 uur geleden

      UY Scuti isn’t the largest known star.



    Dag geleden

    Our sun be lookin like .

  81. Abandoned Cat

    Abandoned Cat

    Dag geleden


  82. saturn saturn

    saturn saturn

    Dag geleden

    Actually the answer "is not we don't know" the biggest star in the milkyway galaxy is UY SCUTI

    • Baguette Gott

      Baguette Gott

      21 uur geleden

      Yeah but we're talking about the entire observable universe here, not just our home galaxy

  83. Nicolus Alexandrus

    Nicolus Alexandrus

    Dag geleden

    I think these are hypotetical but what about quasi-star ?

  84. Max Chambers

    Max Chambers

    Dag geleden

    Do any of u get the feeling of just binge watching way to many of kurzgesagt's videos simply because they are just way to visually pleasing or is it just me cus im sure that some of u guys just end up spending a few hours watching kurzgesagt untill u realise that you have more important things to do

  85. Mahmut Atalay

    Mahmut Atalay

    Dag geleden

    God im such a Brown dwarf

  86. Eyad mohamed

    Eyad mohamed

    Dag geleden


  87. Connie Scott

    Connie Scott

    Dag geleden

    The divergent cast appropriately beg because crib moberly apologise including a historical japan. craven, private increase

  88. Jay Ng junior

    Jay Ng junior

    Dag geleden

    Isn't it amazing to know that stars which are comprised of gas and atomic reactions also have a lifecycle like any other living beings. A cycle of birth and death.

  89. diego arana

    diego arana

    Dag geleden

    me n the squad stay lighting up then watching Kurz astronomy videos.

  90. Simon Cheetham

    Simon Cheetham

    Dag geleden

    how do you get a hypernova from a star?

  91. Govind Prakash

    Govind Prakash

    Dag geleden

    In short, Bigger isn't always better!

  92. Critical Thinker

    Critical Thinker

    Dag geleden

    I thought the biggest star known to man currently is UY Scuti?.

    • MC GamerSZ

      MC GamerSZ

      15 uur geleden

      @Arnout H nope uy scuti is not even top 50 anymore because now it is believed to be 4x smaller

    • Arnout H

      Arnout H

      23 uur geleden

      That’s just the biggest in the milky way

  93. Nickccnt


    Dag geleden

    10:24 Where did Earth go?

  94. 갈채


    Dag geleden

    korea subtitle has error.

  95. Gaming Legend

    Gaming Legend

    Dag geleden

    I though uy scutti was the biggest star.

  96. Ean Elijah De Guzman

    Ean Elijah De Guzman

    Dag geleden

    VY Canis Majoris: Am I a joke to you?

  97. Ean Elijah De Guzman

    Ean Elijah De Guzman

    Dag geleden

    Anybody notice the m used to represent mass is just the Wish logo flipped over?

  98. Bethany Green

    Bethany Green

    Dag geleden

    1:20 “But we want to talk about stars. Not failed wannabe stars”. Tik tokers: T R I G G E R E D

    • Ean Elijah De Guzman

      Ean Elijah De Guzman

      Dag geleden


  99. Han Karatepe

    Han Karatepe

    Dag geleden

    Türkçe altyazi mi bozuk yapan kişi mi ?

  100. Right And

    Right And

    Dag geleden

    If that thing blow we can kiss bye bye to half of the universe,