How to Move the Sun: Stellar Engines

Sources and further reading:
Get your Stellar Engine Infographic Poster here:
Nothing in the Universe is static. In the milky way, billions of stars orbit the galactic center.
Some, like our sun, are pretty consistent, keeping a distance of around 30,000 light years from the galactic center, completing an orbit every 230 million years.
This dance is not an orderly ballet - more like a skating rink filled with drunk toddlers. This chaos makes the galaxy dangerous. Our solar neighbourhood is constantly changing, with stars moving hundreds of kilometers every second.
Only the vast distances between objects protect us from the dangers out there. But we might get unlucky in the future. At some point we could encounter a star going supernova. Or a massive object passing by and showering earth with asteroids.
If something like this were to happen we would likely know thousands, if not millions of years in advance. But we still couldn’t do much about it.
Unless… we move our whole solar system out of the way.

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:
Patrick Hall, Evan Wenden, riz, Nick Rose, Kevin, Patrick Huizinga, Mike Chang, Deddy Jobson, David Nir, Danny Mill, Kai Hebeler, Gabriel Averett, Pierre Xavier, Rohan Kapoor, Bray Demonbreun, Olivier L, Jared Capelle, Mike, Pierre Krenn, Kristofer Kirss, The Captain, Имяя Фамилияя, Marie Samira, Hekmon, Dsurian, Martina, William Wold, Carston Cook, Daniel Bruce, Milan Juza, michal pol, Dmitry Sadakov, Brian Tieskoetter, kagami suigin, Rosamelia, Amir Johnson, Spencer Byars, Jarrod Parsons, Tayler Martin, bmwniquester, Saito Nakamura, Arnulf Kraan, Emilia Liu, Roosevelt Perry, Frank Blood, Máté Szabó, Kasper Kylmälä, Zach Riddle, Damian Campbell, XeleX55, Johann Pardanaud, Cemil Urganci, 3theNet


  1. Kurzgesagt – In a Nutshell

    Kurzgesagt – In a Nutshell

    11 maanden geleden

    This was our last video for the year 12019 of the Human Era. And what a year it was. So much stuff happened everywhere. To so many different people. Calendars and holidays are just imaginary but they help us to cut our lives into pieces that our brains can handle. We are leaving 12019 behind with a weird mixture of disillusion and hope. The world is screwed up. But we can fix it. In a few days this year will be over. And we all get to try again. Thank you for watching our videos and for sticking around for so many years. See you all in 12020.

    • Rafael Ruiz

      Rafael Ruiz

      5 dagen geleden

      I miss that year

    • Majid Sanji

      Majid Sanji

      14 dagen geleden

      i'm watching all of your videos and you should come back because i'm translating your videos for my people in my country

    • sabina bajracharaya

      sabina bajracharaya

      17 dagen geleden

      12020 Is more of a mess then 12019

    • Samudra


      18 dagen geleden


    • New Zealand Mapping

      New Zealand Mapping

      Maand geleden

      2020 was worse

  2. Emma Young

    Emma Young

    12 minuten geleden

    Me watching in 2020 hearing the optimism of “maybe next year will be better” 😅😒

  3. Mauro Ogami

    Mauro Ogami

    7 uur geleden

    wow i really love this video where u get to learn about thing which one of us will do i guess and i am thanks full for it

  4. TheWhiteElement


    12 uur geleden

    imagine watching this vid in the year 1200000

  5. Jason Howgate

    Jason Howgate

    15 uur geleden

    i think we may need to try a little harder next year

  6. Zappli Fire

    Zappli Fire

    16 uur geleden

    I wish i would be alive to see it happen. But we all know that i wouldnt live long enough

  7. Tesla 369

    Tesla 369

    17 uur geleden

    8:16 this didn't age well

  8. YuTse음모


    20 uur geleden

    What if earth was ejected??

  9. The ham Man

    The ham Man

    21 uur geleden

    *ellon get to work*

  10. Irakli Guchashvili

    Irakli Guchashvili

    Dag geleden

    Drunk todlers

  11. Shao-Ting Chang

    Shao-Ting Chang

    Dag geleden

    Wow, this video surely aged well

  12. I L

    I L

    Dag geleden

    8:36 No you idiot you are going to a world of coronavirus, riots and doom.

  13. Fat Spider

    Fat Spider

    Dag geleden

    drunk toddlers lol

  14. Álvaro Galiana

    Álvaro Galiana

    Dag geleden

    you don't move out of your confort zone, you DISPLACE it

  15. Mohini Albert

    Mohini Albert

    Dag geleden

    Hi, kurzgesagt ,,you have really worked your best on this video.keep it' up. Really liked the idea of stellar engines,,the birdies and flowers made the video lively.

  16. Manetinaj


    Dag geleden

    Yea but lets not get some parts of the solar system too close to black holes and other objects, since you know, i want to keep Uranus.

  17. THE ZAN


    Dag geleden

    I have questions How to make that? Where we get the resources? Wait, why the thing not melt

    • 100 Ton

      100 Ton

      Dag geleden

      they use heat resistant materials that have the best heat resistance technology this thing is a mega structure, it will probably be built thousands of years in the future so by then we will probably dismantle an asteroid to get the materials necessary its possible to create it

  18. Vaibhav Simha

    Vaibhav Simha

    Dag geleden

    Funny how I still watch the video that when comes the chance to actually build it, the sheer number and extent of complexities deter the simplistic, rather calm, tone and outlook of the video.

  19. Jared Hoechst

    Jared Hoechst

    Dag geleden

    *L i t t l e d i d y o u k n o w w h a t w o u l d h a p p e n i n t h e n e x t m o n t h o v e r .* *_H u H A !_* *_O H Y O U D O N T K N O W A T H I N G !_*

  20. Abu Qadim Haqq

    Abu Qadim Haqq

    Dag geleden

    If you have the technology to move a solar system, can't you just do something about the impending supernova or asteroid collision?

    • 100 Ton

      100 Ton

      Dag geleden

      "Yeah our solar system will totally not be destroyed by a super nova created by a massive star with basically unlimited energy for our species"

  21. windex pexs

    windex pexs

    Dag geleden

    WE WANT 12019 BACK

  22. AwesomeGemma


    Dag geleden


  23. Tyler Underwood

    Tyler Underwood

    2 dagen geleden

    "See the sun?" "Yes sir?" "Move it."

  24. Anthon Sanders

    Anthon Sanders

    2 dagen geleden

    全国桑拿会所按摩资源,网址 ,或者百度搜:“寻乐谷”(如果打不开请切换到国外网络) 谢谢4

  25. Davis Azarya Lahope

    Davis Azarya Lahope

    2 dagen geleden

    If there were going to be astroids why not explode the astroids with Nukes?

    • 100 Ton

      100 Ton

      Dag geleden

      Because that wouldn't be very efficient and a stellar engine is for all sorts of uses, plus some asteroids are so large nuking them is like taking a crumb off a biscuit

  26. Heart Dela Pena

    Heart Dela Pena

    2 dagen geleden


  27. highfielder80


    2 dagen geleden

    Does this mean a Stella engine would be observable from great distance (light from the exhaust plume), and as we can't see any it means there aren't any

  28. Isaac Adamu 08

    Isaac Adamu 08

    2 dagen geleden


    • 100 Ton

      100 Ton

      Dag geleden

      its possible lol

  29. Aman Sheoran

    Aman Sheoran

    2 dagen geleden

    And we are at a particular point and it repeats every time.And every thing happens infinite time. Believe you

  30. ilyatuck


    3 dagen geleden

    If photons have no mass, then how could they create thrust? This doesn't make sense to me.

  31. Hong Lo Van

    Hong Lo Van

    3 dagen geleden

    Humans: invent solar thruster Aliens: That's got to be the greatest pirate I have ever seen.

  32. liorrs 100

    liorrs 100

    3 dagen geleden


  33. Channel construction temporarily halted

    Channel construction temporarily halted

    3 dagen geleden

    Don't wanna leave the planet? That's fine! *bring the planet with you*

  34. Luigi time

    Luigi time

    4 dagen geleden


  35. Kyle Wong

    Kyle Wong

    4 dagen geleden

    I just watched the solar flares video... Won't solar flares damage or destroy the engine?

  36. Smitty werben man jensen

    Smitty werben man jensen

    4 dagen geleden

    Keep it great

  37. Glenda Muyco

    Glenda Muyco

    4 dagen geleden

    11 moths ago

  38. Boomed Pig

    Boomed Pig

    4 dagen geleden

    7:23 level:4

  39. Maria Lawal

    Maria Lawal

    4 dagen geleden

    Sun would be like: hey, what r u doing, I didn't agree to this.

  40. ManoBloxerYT


    4 dagen geleden

    7:29 Mew

  41. Lapid Palid

    Lapid Palid

    4 dagen geleden

    thumbs up for the 80s video game music

  42. JCH


    5 dagen geleden

    8:28 we failed, rly bad. This didn't age well at all

  43. Mika On mars

    Mika On mars

    5 dagen geleden

    kurzgesagt im thankfull a billion to you i have a presentation about astronomia tomorrow and you just saved me i like this channel so much this is my fav. channel thanks a quadrillion and pls if you can please reply i would be so greatfull thanks

  44. Runhua Ma

    Runhua Ma

    5 dagen geleden

    “What a year 12019 was.” “The world has screwed up. In a few days we would be able to try again.” Coming to the end of 12020 now and boy has the world screwed up and was more horrible than ever. I loved 12019

  45. The Lurdsen

    The Lurdsen

    5 dagen geleden

    If he would have known what a year 12020 will be...

  46. MetalPanda


    5 dagen geleden

    7:23 Spike's Swordfish II appears. Me: [start screaming]

  47. Pluto


    5 dagen geleden

    That size of engine ... impossible

    • 100 Ton

      100 Ton

      Dag geleden

      It's very possible



    5 dagen geleden

    Just hope this video recommoded 20000 years later

  49. Eleanor Garrett

    Eleanor Garrett

    6 dagen geleden

    people in 2019: this year will be great 2020:are you sure about that?

  50. Alpha


    6 dagen geleden

    Alright boys, let’s get to work, we be goin to Alpha Centauri

  51. Franz Liszt

    Franz Liszt

    6 dagen geleden

    did i say Drunk Toddlers?

  52. Kyler Nicosia

    Kyler Nicosia

    6 dagen geleden

    Is there something you are trying to tell us.

  53. intromk11


    6 dagen geleden

    "drunk toddlers in a skating rink"

  54. Joey DR14

    Joey DR14

    6 dagen geleden

    The world is screwed up but we can fix it 2020 : hold my beer

  55. Jordy 229

    Jordy 229

    6 dagen geleden

    This is some Rick and Morty sh!t right here

  56. Evan Segovia-Baldestran

    Evan Segovia-Baldestran

    6 dagen geleden

    Kurz in 2050: what if we made a stellar engine for the galaxy?

  57. owen Irwanto

    owen Irwanto

    6 dagen geleden

    What if the exaust, destroy earth?

    • 100 Ton

      100 Ton

      Dag geleden

      Do you really think the fire from the exhaust will travel millions of kilometers and be enough to destroy earth? that wouldn't happen

  58. Squidgy Doughnutz

    Squidgy Doughnutz

    6 dagen geleden

    6:06 Are you turning into Dr. Wells lol Dont want another Flash incident do we now?

  59. PercyKqv


    6 dagen geleden

    If kurzgesagt had an enemy, I wouldn’t want to be the enemy

  60. 「AlNexus」


    6 dagen geleden

    Humans: We moved the Sun! We are oficially saved! The smol black hole in the corner: *AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA time to eat*

  61. Nickolas blip

    Nickolas blip

    7 dagen geleden

    "we can fix it " not in 2020 you cant

  62. skulling reeper

    skulling reeper

    7 dagen geleden

    "with the kaplan thruster we can colonize solar systems" the British: *laughs in colonization*

  63. lopeepso livi

    lopeepso livi

    7 dagen geleden

    "Hey Ferb, i know what we're gonna do today"

    • Gabriel Nicholas

      Gabriel Nicholas

      5 dagen geleden


  64. NXS 45

    NXS 45

    7 dagen geleden

    "Im tired of this place" "Lets move!" "Where?" "Andromeda!" "How?" "Move the sun duh!!!...."

    • RandomAnimations


      5 dagen geleden

      *"nah let's just go to the loneliest galaxy in the universe so nothing can bother us nor collide with us"*

  65. Tito 45

    Tito 45

    7 dagen geleden

    I don’t like how they bring up death at the begging like bro you trynna stress me out of the inevitable??

  66. SurrealGaming


    7 dagen geleden

    How would we be able to build things bigger than earth-

    • 「AlNexus」


      6 dagen geleden

      We would be able to.

  67. Jay Bruce

    Jay Bruce

    7 dagen geleden

    Watching this in late 2020, it seems so strange to hear that world was a weird and screwed up place in 2019 and hopefully 2020 would be better... That didn't work out, did it?

  68. Артём Зайчик

    Артём Зайчик

    8 dagen geleden

    And here we are in 2o2o, failed to effectively control a virus

  69. Sett, A Ring Királya

    Sett, A Ring Királya

    8 dagen geleden

    7:26 Look, it's Mew

  70. Shark Bites Back

    Shark Bites Back

    8 dagen geleden


  71. Adolfo M

    Adolfo M

    8 dagen geleden

    the time and space is creations of de main (el tiempo y el espacio son creaciones mentales)

  72. DAVID -19

    DAVID -19

    8 dagen geleden

    There is something I can`t unterstand about the SHKADOV THRUSTER: The mirror would get pushed back because of the amounts of photons. This is logical. But why follows then the sun the mirror? I don`t think that it would have mass enough to atract the sun so strong. Can somebody explain this?

  73. Carlos Venegas Toledo

    Carlos Venegas Toledo

    8 dagen geleden

    The end of the video didn't age well



    8 dagen geleden

    "the world is screwd up, but we can fix it" then 2020 enter the room

  75. Jack Die Lu

    Jack Die Lu

    8 dagen geleden

    Plot twist: We don't need to.

  76. Toby Dinh Gaming

    Toby Dinh Gaming

    8 dagen geleden

    Wont the universe disappear in a long time

  77. Yuukio


    8 dagen geleden

    i love these vids so much :D

  78. Ian Naz

    Ian Naz

    8 dagen geleden

    Ferb is Bad

    • Ian Naz

      Ian Naz

      8 dagen geleden


  79. ʜᴇʟᴘ ʜᴇᴘʟ ʜᴇʟᴇᴘ ʜᴇᴘᴘ

    ʜᴇʟᴘ ʜᴇᴘʟ ʜᴇʟᴇᴘ ʜᴇᴘᴘ

    9 dagen geleden

    Oh look! A supernova! Haha! Fuck off! Bye!

  80. Nicholas O'Leary

    Nicholas O'Leary

    9 dagen geleden

    From the distant future of November 12020, thanks for jinxing us.

  81. The Duzle

    The Duzle

    9 dagen geleden

    "let's just take our solar system and move it over here"

  82. jebediah kerman

    jebediah kerman

    9 dagen geleden

    2:24 me when I see the bird : yo that bird is ded😂😂😂

    • og_sniff


      9 dagen geleden


  83. space craft

    space craft

    9 dagen geleden

    But theres one problme in this vido in spaces theres no air but theres in Fire in space?

  84. Deepak yadav

    Deepak yadav

    9 dagen geleden

    We can use black hole and white hole to done. And man will replaced by warm hole.

    • og_sniff


      9 dagen geleden


  85. rima rahmawato

    rima rahmawato

    9 dagen geleden


  86. TheWhiteElement


    9 dagen geleden

    i regret watching these types of videos without any food to eat bc these vids ARE SO GOOD

  87. Nikolas Mason

    Nikolas Mason

    9 dagen geleden

    7:15 I saw what you did there

  88. That guy weird

    That guy weird

    9 dagen geleden

    Can we fix it? You put too much hope in people lets just be monke again



    9 dagen geleden

    Porque o yitulo é em potugues mas o video em inglés

  90. Lazy Protogen

    Lazy Protogen

    9 dagen geleden

    Then end did not age well

  91. faasd fer

    faasd fer

    10 dagen geleden

    We leave 2019 with hope that earth can be fixed. 2020: Bonjour

  92. Debasish Sundar Ray

    Debasish Sundar Ray

    10 dagen geleden

    I have trouble moving out of heavy traffic. First ask scientists to solve the problems of earth please.

  93. Blandbread 561

    Blandbread 561

    10 dagen geleden

    this give me hope

  94. Kami sama

    Kami sama

    10 dagen geleden

    I love how fast the Earth recovered at 3:29.

  95. Callahan Blischke

    Callahan Blischke

    10 dagen geleden

    Couldn’t that theoretically be used to make our solar system last forever, if we can both harness mass from the sun to simultaneously move it and also make its life last longer, and also theoretically move our planet if the removing of mass from the sun makes it hotter or colder somehow ( I don’t know which would happen but one or the other would definitely happen, and if moving the sun is easy for humans than moving planets should be a cake walk). Lower mass stars can last for trillions of years, and if we can avoid all the dangers of the universe with ease we can literally last forever.

  96. Colchester Clan

    Colchester Clan

    10 dagen geleden

    I'm so sorry about what's going on in 2020 the Coronavirus and everything

  97. Gappy Walking

    Gappy Walking

    10 dagen geleden

    4:41 oh no the dude a bbq

  98. Zeke Bukovansky

    Zeke Bukovansky

    10 dagen geleden

    Lmaooooooo. Watching the end of this video in 2020 be like👁👄👁

  99. Edward Du

    Edward Du

    11 dagen geleden

    Corona says hi

  100. eric garner

    eric garner

    11 dagen geleden

    "Hey Ferb, i know what we're gonna do today"