What Do Alien Civilizations Look Like? The Kardashev Scale

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The observable universe is a big place that has been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home galaxy. In the milky way alone scientists assume there are some 40 billion earth like planets in the habitable zone of their stars. When we look at these numbers it is hard to imagine that there is nobody else out there.

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  1. Kurzgesagt – In a Nutshell

    Kurzgesagt – In a Nutshell

    4 maanden geleden

    Whether you are going back to school, leaving home for the first time or if you just want to treat yourself, our shop is now stocked and ready for all your back to school needs. shop.kurzgesagt.org We have notebooks, notepads, stickers, mugs and of course lots of posters to decorate your room or apartment. If you want to update your wardrobe, we have pretty cool t-shirts and a new and super soft Earth Sweatshirt. Even though things might be a bit different for most of you this year, we hope you’ll still be able to learn lots of exciting things about life and the universe. Stay safe!

    • Polina Syzrankina

      Polina Syzrankina

      3 dagen geleden

      "Hey, dude there's this planet that has humans. I created it by accident so i'm just going to create a deadly virus to wipe em out." "Okay!"

    • Cody Lewis

      Cody Lewis

      4 dagen geleden

      Imagine if type Ω beings have their own Kardashev scale, and they classify themselves only as the type 1.

    • Arjuna Delhy

      Arjuna Delhy

      8 dagen geleden

      @Thanks Kurgesagt .In my chilhood I was speaking very well german

    • wall boi

      wall boi

      14 dagen geleden

      nice vids matey

    • RudiandKelly Schneider

      RudiandKelly Schneider

      21 dag geleden


  2. Yuhang Zhang

    Yuhang Zhang

    30 seconden geleden

    Damn too bad none of us will be able to find out...

  3. sarokha niaji

    sarokha niaji

    39 minuten geleden

    Imagine aliens just looking at us in world war II being like "what idiots"

  4. Rommel Gerardo

    Rommel Gerardo

    53 minuten geleden

    i wish its not real

  5. hybby


    Uur geleden

    "We should be able to see their influence and artifacts" Should we? What if they're staying quiet in order to observe, and are excellent at keeping their actions low key? Would we even know WHAT to look for from a T3+ civ?

  6. Ahmad Faris

    Ahmad Faris

    Uur geleden

    Misread the title as the Kardashians scale

  7. Fedorka Bondi

    Fedorka Bondi

    Uur geleden

    The brawny step-grandfather conjecturally clean because giant italy greet behind a innate soybean. clean, military oatmeal

  8. Aiden short

    Aiden short

    2 uur geleden

    Bruh I'm a Christian and I still love this channel

  9. albi_in


    2 uur geleden

    That was a big puff

  10. James Ruscheinski

    James Ruscheinski

    2 uur geleden

    Going from planetary civilzation to star system civilization probably requires more intelligence than technology and going from star civilization to galactic civilization probably requires more consciousness than intelligence. In the near term humanity need to become more intelligent to survive / thrive in solar system; in longer term humanity need to develop more consciousness to survive in Milky Way.

  11. Lewe Harpoon

    Lewe Harpoon

    3 uur geleden

    5:00 the most overlooked problem with interplanetary communication is that it is unlikely to understand our languages

  12. R M L

    R M L

    3 uur geleden

    I believe when we die we discover all of it, our consciousness is just transferred

  13. MrSquibs


    3 uur geleden

    am I the only one who saw the "Is this what you're looking for?" at 4:36? Nice that u used Aurebesh

  14. Augustine Toth

    Augustine Toth

    4 uur geleden

    In my opinion, this is one of Epic Mountain's best compositions so far. It's astonishingly good.

  15. Lukas Patrick

    Lukas Patrick

    4 uur geleden

    Wow incredible Animations !!! Thanks a lot Kurzgesagt for the Video :D

  16. xisotopex


    4 uur geleden

    its not that ants think of us as gods, its that the ants dont/cant know that we even exist, and have no way to even detect us.

  17. Nicholas Scales

    Nicholas Scales

    4 uur geleden

    I’d love to see a video where you talk about the likelihood of humans gaining superpowers

  18. xisotopex


    4 uur geleden

    our quarrels are not irrelevant they are all based on acquisition of resources. it s about to get real when those quarrels move from resources like oil, to basics like food or water. at 8 billion people the earth is getting stretched... imagine a conflict that reduced the total population to only 1 billion... plenty to go around after that.... and lots of fertilizer on the ground for a really green spring.

  19. xisotopex


    4 uur geleden

    according to Fermi they dont exist

  20. [REDACTED] Virus

    [REDACTED] Virus

    5 uur geleden

    1:00 Stellaris moment.

  21. Tuan Van

    Tuan Van

    5 uur geleden

    Yang pilih allah like.

  22. bruh


    5 uur geleden

    lmao the human face turning into a trollface when the signal decays

  23. Shityy Gamer#

    Shityy Gamer#

    6 uur geleden

    Please don't offend it's jok 0:53 its we with phone😂😂😘

  24. Dorthy Norton

    Dorthy Norton

    6 uur geleden

    The physical grenade revealingly want because lyric physically thank under a fresh hair. humorous, knowledgeable authority

  25. Soukayna Saadi

    Soukayna Saadi

    7 uur geleden

    You are incredibly wonderful

  26. Thank You

    Thank You

    9 uur geleden

    After watching two videos I'm hooked New subscriber Keep up the good work ❤️❤️

  27. Holly House

    Holly House

    11 uur geleden

    Im surprised with the videos you have seen that you dont believe in the higher-type civilizations. If you buy a good night vision monocular, you can see lasers being shot between some type of ships. Interstellar by Jose Escamilla shows what a lot of the "stars" actually look like up close...not stars at all. John Lenard Walson is the originator of this material. Check out his channel on NLcameras.

  28. Daniel Edwardsen

    Daniel Edwardsen

    12 uur geleden

    The only thing seperating us from being the term of god, is subjectification of the system

  29. Daniel Edwardsen

    Daniel Edwardsen

    12 uur geleden

    To be honest the measurable scale in which that guy created of human evolution is bull and doesnt work, take Nikola Tesla for example he made energy based off the surrounding vibrations of our projected world, me myself can produce energy from my body on a physical seeable scale, in truth also humans are not naturally greedy beings we are taught to be such through the leaders of the world aswell as due to money....... the simulation theory in which you have provided in previous videos was semi correct but the rest in which you have made are based on a systematic gradual evolutionary scale..

  30. Wes O'Rear

    Wes O'Rear

    12 uur geleden

    To think just that there could be other civilizations out there that are to us as we are to the bacteria on the ground.

  31. dino nuggies guy

    dino nuggies guy

    13 uur geleden

    What if, our civilization is just a fresh install from a game created by an Omega Civilization and is currently level 1.

  32. Raphael Carmo

    Raphael Carmo

    14 uur geleden

    Oh yes, my daily existencial pain resource. Thank you.

  33. Infinite Crafts

    Infinite Crafts

    14 uur geleden

    This is exciting! I can't wait to buy some awesome merch for my room!!!

  34. Epyon1234


    14 uur geleden

    I would love to see a video of a civilization that expands inward

  35. KuraMa28


    14 uur geleden

    Games can be made from this

  36. Griffin D

    Griffin D

    14 uur geleden

    Traveling faster than the speed of light is impossible. So you were inaccurate. Bending space? That's another question.

  37. IItZ_Infact


    15 uur geleden

    I learn more from NLcameras than from School, damn it.

  38. Joseph Newman

    Joseph Newman

    16 uur geleden

    This is actually beautiful

  39. John Kills

    John Kills

    17 uur geleden

    This is brainwashing at its finest

  40. DOUBLE D


    17 uur geleden

    🥵🥶🥶🤒🤒🤯🤯 wow 😳 omg 😱😱

  41. Dmitry Pavlovsky

    Dmitry Pavlovsky

    18 uur geleden

    This is trippy af

  42. Just in Case Productions

    Just in Case Productions

    18 uur geleden

    We are just exotic superior matter, which will eventually take over the whole universe until there is nothing left. Maybe scale is ust an illusion and we are like in the cell of another organism and so on. Who says scale is finite? But then again, what if we have a species within our cell, that is slowly developing? They will eventually die, when we die.

  43. Zeus But shaved

    Zeus But shaved

    19 uur geleden

    5:00 lmao alien get trolled

  44. Garrett Hildebrandt

    Garrett Hildebrandt

    19 uur geleden

    But what if the actions and remnants of Type 3+ civilizations are observable. It’s just that, to us young bloods, they’re indistinguishable from the natural order of physics and the universe. The Fermi Paradox? What if it’s these civilizations, or something else, killing off species to keep all the power for themselves, or some other reason? Residual dark energy aetherically moving through the observable Universe? What if it’s these beings merely existing?

  45. cahalsall


    19 uur geleden

    We have to come up with the warp drive first.

  46. oink boink

    oink boink

    20 uur geleden

    Why does this remind me of a miniverse from rick and morty

  47. John nixter Perez

    John nixter Perez

    20 uur geleden

    The thing about civilization depends on the environment they are living in. Take the octopus as an example. Octopus are smart creatures. Imagine if our fish ancestor never crawled on land. Earth might look very different. Also take note energy use. For example. Gasoline or oil. In some far distant planet. Oil might be a very very precious to them and they might have better application on it than humans. What if we never discovered fire. Yes some of you might say then we will get stuck in stone age. Then what about we discovered the use of certifugal force first. Or discovered some form of energy completely different from what we have. The universe is big. What if there is a planet with octopus as the rulers of that planet. And they have ways to use energy different from us. What if.

  48. ichbinjasokreativ


    21 uur geleden

    There`s one thing I`d like to mention in context to this video, specifically the "Researchers looked and didn't see any decaying remnants of alien megastructures" part: The closest star to our sun is alpha centauri, being 4 light years away. This means, that when we point our telescopes to that star, we see it as it was 4 years prior because that is how long its light took to reach us. When we look into the universe, and we discover stars and planets around them hundreds of thousands or even millions of light years away from us, we only see what they looked like hundreds of thousands or even millions of years ago. In other words, even the dark side of earth might be obviously inhabited by us, given that our cities are clearly visible at night from space, but if a civilisation existed even just 1000 light years away from us, they wouldn't see that, even if they pointed their telescopes at exactly the part of our planet where cities like new york are now, because 1000 years ago new york wasn't built yet. There might be alien life exploring their own solar systems all over the milky way, but if they are too young for their light to already reach us, we won't know. Perhaps there will be a time, somewhere on the other side of our galaxy, when alien researchers point their telescopes at earth and see brightly lit cities, satellites and even the ISS, but mankind will long have gone extinct. When the sun gets old enough, and therefore big enough, to swallow earth, alien telescopes might still see the dinosaurs.

  49. Zico Zicowo

    Zico Zicowo

    21 uur geleden

    God was just a type 5 species that got bored XD

  50. Jacob does YouTube

    Jacob does YouTube

    22 uur geleden

    I'm jamming out the bgm

  51. Arjun Madan

    Arjun Madan

    23 uur geleden

    Nobody Literally not a single soul: Type III civilisations to humans: *My goals are beyond your understanding*

    • R M L

      R M L

      3 uur geleden


  52. tim johansen

    tim johansen

    Dag geleden

    My cats name is mittens.

  53. Jay Uchiha

    Jay Uchiha

    Dag geleden

    What if there is -civilisations and we are type omega to them

  54. quilles videos

    quilles videos

    Dag geleden

    I don't reckon there will be an end of progress personally, because when we make a new stride in science or technology, we learn that that opens a door to more we don't know. As far as I believe, science will never end.



    Dag geleden

    4:36 that's star wars aurobesh thats a actual language

  56. drelines


    Dag geleden

    how about Jesus Christ!? \\

  57. Blixer is annoying

    Blixer is annoying

    Dag geleden

    Universal pizza :)

  58. Rana Alrobbie

    Rana Alrobbie

    Dag geleden

    are aliens real

    • Lmg no longer mounted And loaded

      Lmg no longer mounted And loaded

      21 uur geleden

      Most likely

  59. SakeGaming


    Dag geleden

    10:07 id like mushroom guys to take over the whole universe rather then aliens cause mushrooms are tasty ya know

  60. SakeGaming


    Dag geleden

    I like how videos people posts from the future lack of oil destroying the ozone layer green house effect climate change lack of trees and other stuff but this video is trying to prove we can do better rather then just lose and get eaten by the sun

  61. Erokay Gürz

    Erokay Gürz

    Dag geleden

    What if the artifacts of the higher scale civilizations are already all around us but we can't comprehend them? How we can define the "artificial" while we can't even understand and still discovering the "natural"?

  62. Louiji


    Dag geleden

    So everytime I argue with a religious person, I'd tell them God is a type omega civilian

  63. e e

    e e

    Dag geleden

    Just use stargate

  64. Nargacuga


    Dag geleden

    How I wish that there is a kurzgesagt app.

  65. ɨΔɱτhεΘռʟʏᏫռɛ.Ꮚ. ᖇᏋᎩΣS

    ɨΔɱτhεΘռʟʏᏫռɛ.Ꮚ. ᖇᏋᎩΣS

    Dag geleden

    Yo Why noT !Purple!

  66. keivan


    Dag geleden


  67. Rayeee


    Dag geleden

    Alien lawyer 1: You changed some apes into almost hairless creatures that walks in feet alone and upgraded their intelligence by 70%...do you admit it? Alien accused: It was 60,000,000 years ago when i visited planet X to harvest our dinosaur stakes and barbecues when i drop chemical zero somewhere...10,000 years ago i came back for it and to my shock chemical 0 was leaking bad and and the apes ..and it happened. Alien judge: You are guilty! Alien accused: Your honor i can go back and clean my mess...those hairless apes are meaty and can be barbecued with sauce supreme .i can harvest them in 1 day..bbq,stakes, hairless fried skins. Alien judge: (slurppp)

  68. A B

    A B

    Dag geleden

    Greedy, competitive and expansionist? We are also cooperative and altruistic. If we were just the top three, we would not be able to sustain large families, continental-size and global economies.

  69. neverblxe


    Dag geleden

    the kardashian scale

  70. Grim


    Dag geleden

    This gave me goosebumbs!

  71. Ileana Gabriela

    Ileana Gabriela

    Dag geleden

    I love the narrators voice, so soothing!

  72. Tiffanni Rose

    Tiffanni Rose

    Dag geleden

    This might be old to post too, but I had a sci-fi story that I am writing. Essentially Humanity is the first sentient race (since we are relatively early in galactic history) and humanity grows and changes into other scales. Eventually our descendants get lonely and begin to seed planets with life and then they watch and wait to see if it grows.

    • alex


      Dag geleden

      I hope I get to read it :)

  73. Calvin J

    Calvin J

    Dag geleden

    Damn....we’re such noobs.

  74. Brady Wolff

    Brady Wolff

    Dag geleden

    The only other scary thing that we can discover now is humans on other planets and think about it humans on other planets.



    Dag geleden

    plot twist an alien drop a advance technolodgy and humans found it thats why we have technology

  76. Just Monika

    Just Monika

    Dag geleden

    8:40 oh damn an Adventure Time reference



    Dag geleden

    I hope i can reach the year 2050 and join the guardians of the galaxy

  78. Thereisnotry


    Dag geleden

    I, for one, welcome our new intergalactic overlords.

  79. Mario 4oo

    Mario 4oo

    Dag geleden

    Bad news 📰 🗞 you die once

  80. Briguy


    Dag geleden

    Maybe the Boötes Void is due to a Type 4 or 5 Civilization harvesting or enveloping (like with Dyson Spheres) multiple galaxies?

  81. 성훈02


    Dag geleden

    i came here to watch science, not comicbook.

  82. Jordan Uggla

    Jordan Uggla

    Dag geleden

    does that mean that the diamonds in steven universe are a type 2 or 3 society?

  83. Aaron de Oliveira e Sousa

    Aaron de Oliveira e Sousa

    Dag geleden

    These video types are so satisfating

  84. pussy


    Dag geleden

    These videos are probably one of the best things to come out of youtube

  85. Haley Weatherall

    Haley Weatherall

    Dag geleden

    Are we sure we aren’t a child’s anthill pet? Maybe we haven’t met any aliens type 2, etc is because our Type Omega owner isn’t finished playing with us yet.

  86. Carson Kohler

    Carson Kohler

    Dag geleden

    This just makes me want to play spore

  87. Jacob Breese

    Jacob Breese

    Dag geleden

    But, if a society like this exists and had that tech we think would exist... wouldnt it also be within their abilities to hide their existence?

  88. Rishav Das Bagchi

    Rishav Das Bagchi

    Dag geleden

    We have a long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long long (long¹⁰⁰⁰⁰⁰⁰⁰⁰⁰⁰⁰⁰⁰⁰) way to go😭😭

  89. Jacob Farrell

    Jacob Farrell

    Dag geleden

    If we ever came across alien life, how would we learn to understand them? Especially with their different cultures and perhaps strange ways of communication.

  90. flip a dip

    flip a dip

    Dag geleden

    So stunning and brave of you to call them "Irrelevant quarrels"

  91. Johnny Carcinogen

    Johnny Carcinogen

    Dag geleden

    5:21 Idk, man, that's an *AWFULLY* big IF...

  92. Jonathan Duncan

    Jonathan Duncan

    Dag geleden

    Just imagine if the first messages aliens receive are some memes from a streamer

  93. Johnny Carcinogen

    Johnny Carcinogen

    Dag geleden

    There's a really great book from Paul Davies, former chair of the SETI: Post-Detection Science and Technology Taskgroup of the International Academy of Astronautics, called The Eerie Silence that does an amazing job explaining why there really truly probably isn't anyone else out there - at least in this galaxy. I would say that the odds of there being any other life anywhere else are astronomically small,but, well, I'm not sure that would actually convey it. He also lays out several variables to the Drake Equation that most people have never considered - like the need for a gas giant like Jupiter in approximately the same position/ distance from any Earth-like planets to help catch stray incoming asteroids & other objects. I don't remember if he mentions the asteroid belt or a single moon of size & position of our own (or one of a different size & position, but that would still produce similar tidal forces), but that latter one especially would be critical to the evolution of life. He also explains in detail the processes for if there actually is some sort of detection. Good read.

  94. goommis


    2 dagen geleden

    What if there are type 3 civilisations and we see their work but can't understand what wee see? As in the video we're like ants trying to understand human civilisation.

  95. Josh L

    Josh L

    2 dagen geleden

    It's likely our energy consumption will drop precipitously when civilization collapses in twenty years from over extraction and ecological catastrophe.

  96. Brandon Velazquez

    Brandon Velazquez

    2 dagen geleden

    Our technologies are probably too primitive that we simply can’t scan/find them

  97. Cry Jam

    Cry Jam

    2 dagen geleden

    my 10 other google accounts are subscribed to only pewdiepie and kursgezagt.

  98. Okie


    2 dagen geleden

    5:00 trollface

  99. Jeremy Sitorus

    Jeremy Sitorus

    2 dagen geleden

    Anyone who uses Aurebesh as alien filler text in a non-Star Wars context belongs to a Type Ω^Ω or thereabouts

  100. Michal Rábek

    Michal Rábek

    2 dagen geleden

    I love this video sooo much. And the music is amazing too