How to Build a Dyson Sphere - The Ultimate Megastructure

  • Published on: 20 December 2018
  • To support Kurzgesagt and learn more about Brilliant, go to and sign up for free. The first 688 people that go to that link will get 20% off the annual Premium subscription.

    Get your Dyson Sphere Poster here:

    If humans want to expand into space, it will take us incredible amounts of energy. How do we do that? Easy: we will just use the sun’s energy by realizing the most ambitious construction project in history. This is how it works.


    Support us on Patreon so we can make more videos (and get cool stuff in return):


    The Voice of Kurzgesagt:
    Steve Taylor:

    The music of the video here:

    THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US:ShinodaChan, Justin Jo, Ivan Solano, Lars Martin, Bujju, yingrui zhang, Ben Hinssen, Ethan Templin, Cathy Doan, Aaron VanDevender, Tom Ariaudo, Maksim Farafonov, ,Jessica Fleming, Nathan, Daniel Anderson, Jared Lindros, Sylwia Konstantynowicz, David Choy, Alon Shabtay, Leo August, Yigit Yuruker, Abdulla Al-Suwaidi, Amy Mioduszewski, Katie Crawford, Fred O'Connor, Лилия Пирогова, Riley Murray, MiiRshroom, Jelle Kroezen, Gabriel Bailey, Henri Wiedenmann, Rude Dude, David Fleming, Timo Zuccarello, Alexander Schwarz,Riccardo Testa, Xandy Mi, Jason Saladiner, Stefan Nesinger, Jan Prokop, Cameron Stewart

    Help us caption & translate this video!
  • Runtime : 9:23
  • Dyson sphere Energy Sun Solar Megastructure Solar Energy Dyson Swarm Unlimited Mercury Base Mercury Station Automation Solar Collector Mining Launch Launching rail gun interstellar Fire Coal Oil Atomic Atomic Age Nuclear Energy Renewables Renewable Energy Fusion energy Space Space Exploration Space Expansion Black Hole Bomb Stellar Engine Ring World


  • Felix Yao
    Felix Yao   6 hours ago

    xd "dyson sphere requires dyson sphere"

  • Dr.DerpyDerp
    Dr.DerpyDerp   6 hours ago

    You have me trying to pay my electric bill and you have Kurzgesagt telling us how we can power a entire solar system.

  • MaLaChisViDeOs
    MaLaChisViDeOs   7 hours ago

    I NEED TO SHOW THIS TO THE PRESIDENT(Sees White House and shows him)<—(Sees Steeler Engine Video) I NEED TO SHOW THIS TO THE PRESIDENT(Does same thing as we already didEdit: I liked my own comment because nobody else will :c

  • Kyle Harding
    Kyle Harding   8 hours ago

    Better idea, why don't we just rub sticks together all at once

  • Nani
    Nani   16 hours ago

    You must be an outer-living being working at nasa.

  • Max Mancuso
    Max Mancuso   18 hours ago

    Please turn this into an actual game so I can waste hours playing it. Thank you.

  • Cool Dude
    Cool Dude   19 hours ago

    1912: We will build a flying car!2020: We will build a Dyson Sphere!

  • Jeremy Dirr
    Jeremy Dirr   1 days ago

    While we're at it, let's disassemble that wannabee planet Pluto while we're at it.

  • John Putnam
    John Putnam   1 days ago

    00:38Anyone else getting Voltron vibes?

  • Gilberto Perez Naranjo

    Wow!!! What a disappointment!!! It's incredible that there are still people who take the ridiculous concept of a Dyson Sphere as a serious, realistic idea. I can't believe I've seen this absurdity elevated to the realm of the possible, the logical and the doable by one of the best, least biased and most seriously scientific channels on Youtube.

  • Eli 1639
    Eli 1639   1 days ago

    Imagine the military having literal control of the sun

    OOF MASTER :P   2 days ago

    Now energy sounds like something tangible, and that I can take some of it from the bank.

  • PapaCoolGun
    PapaCoolGun   2 days ago

    The video: talking about building a Dyson sphere Me: thinking if the main characters are birds because there’s just so many

  • Marlow
    Marlow   2 days ago

    Too bad the ones in control use the resources we need to begin this kind of projects, is spent on bombs that are used in pointless wars. A shame really, by now if our presidents were smart, we could have used Ray guns and not bullets

  • Luis Esteban R
    Luis Esteban R   2 days ago

    I always wandered what happend to the energy taken from his natural course... I mean, the energy that must flow free to the heliosphere... I just can't think that a dyson sphere can reach the balance granted by the universe.

  • Top Top
    Top Top   2 days ago

    No no no, we are traveling in big machine: Solar system. Just control dark energy and gravity, that can be easy than the theory of this video! 😌

  • TheOriginalFreak
    TheOriginalFreak   3 days ago

    its called extraplanetary material (e.g. Asteroids, Comets, etc.) and autonomous swarm constructions and mineral harvesting.Think Wall-E except in outerspace and there are millions of them.Also, if we are not in a hurry, we would only need to send out a few hundred or less. This first generation would create more of themselves (Wall-E builders) while 2nd generations and older would begin 'evolving" to include swarm members that have specializations such as material refiners, propulsion units, etc.)In reality, we would likely start with a manned factory in space, but harvesting materials from asteroids and comets would be one of the first technologies implemented as the cost to send materials up from Earth or even to harvest it from a planet of a moon is quite high in most cases.

  • F B I
    F B I   3 days ago

    bruh by the year 3000 we’re gonna be looking like star wars

  • Cristina Williams
    Cristina Williams   3 days ago

    Kurgestat. We cannot build a Dyson sphere because we need the sun’s energy to live. I am sorry- Why is there a Star Wars ship?

  • Titan Gaming
    Titan Gaming   3 days ago

    This would be a really fun game, a possible tycoon game

  • Desert Rat
    Desert Rat   4 days ago

    sadly we humans aren't smart enough to do this

  • Jewboy McGee
    Jewboy McGee   4 days ago

    Asshole, I'm gonna be sleeping in school tomorrow 'cause of you and your fuckin what if scenarios.