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

    9 maanden geleden

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    • Bin Huang

      Bin Huang

      15 dagen geleden

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      16 dagen geleden

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      Deden Vizky Ramadhan

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      nina nina

      17 dagen geleden

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    • Kremitthefroggo


      25 dagen geleden

      @Jes what’s it called

  2. Aswin V

    Aswin V

    54 minuten geleden

    Humans(I personally): Want a supernova in my night sky.Hope Betelgeuse will go supernova during my lifetime. Type 3 civilization: HMB!!! That is what the kids do to celebrate New year / Diwali...

  3. steeven caupenne

    steeven caupenne

    2 uur geleden

    i would play a kurzgesagt game !!

  4. shamy desfines

    shamy desfines

    2 uur geleden

    how is this information known and how is it known to be true ?

  5. Chamchamcham10


    3 uur geleden

    Humanity joined together if we've ever find an alien civilization seems a stretch. More likely individual nation states trying to form alliance with the alien civilization to try and get an upper hand over the other nation states to conquer them. Some of that happened when the new world was discovered, and while you want to believe that history will teach us to react differently... just look at where we are now with all the bullshit that's in the world this very second. No, we'll still try to conquer each other when we meet an alien civilization and doomed our species because our very own greed and pettiness

  6. Ørėo!


    6 uur geleden

    4:35 - 4:40 is the aurebesh language and I think it spells " it it me you're looking for"

  7. Betaflow


    8 uur geleden

    Curious, Competitive, Greedy and Expansionist Hmm... Thats 4x, right? Explore, exterminate, exploit and expand I saw what you did there

  8. Jan Imson

    Jan Imson

    11 uur geleden

    There is like a 75% that aliens are real

  9. Kevin Azeltine

    Kevin Azeltine

    14 uur geleden

    I know people like the make the claim that we're already 1 but actually we're pretty close to one just not quite there yet and I may never see the day we achieve 1.

  10. shaswat kumar roll no.61

    shaswat kumar roll no.61

    14 uur geleden

    Once a legend said Either we are alone or we are not both are terrifying

    • ken


      5 uur geleden

      What does that even mean?

  11. Alex Potts

    Alex Potts

    15 uur geleden

    0:35 "Just knowing that this vast space isn't dead could shift our perspective, and help us get over our irrelevant quarrels." Hahahaha. Have you *met* people?

  12. Galactic Ninja

    Galactic Ninja

    15 uur geleden

    if we don’t crash and burn we could possibly become an type omega civilization. imagine creating entire universes just because you’re bored

  13. Locurm, The God of Darkness

    Locurm, The God of Darkness

    17 uur geleden

    I’ve seen a lot, I didn’t bother to see their energy usage, I just kill ‘em and move on to the next one.

  14. Jennifer Taylor

    Jennifer Taylor

    17 uur geleden

    One thing the scales don't take into account (as per your mentioning of us only having a sample size of 1) is the type of lifeform and what we know of and define as life. What if they are silicone based lifeforms or some other physical based entity. These entities would use resources far differently than carbon based life. For example they would not need energy in the same way we do in order to keep warm and cook food. This fact could either advance their technology depending on their temperament or keep them lock in the stone age as they do not need to invent fire. Then again maybe they need to mine to get to more rocks once their population gets overabundant. Also this type of metabolism is likely much slower leading the the idea that all actions including reproduction to take exponentially longer than carbon based life. What if they are living consciousnesses floating through space? No need for advanced civilizations and no way to gauge their advancement or even know they exists, since anyone that could communicate with them for one reason or another would be considered crazy. Then we get into dimensions. Dimensions are often considered thanks to popular media to be separate. In some cases this is true but most dimensions take up the same space but occupy different perceptions. If for example a 4th dimensional being were to be standing right in front of you, you would not see him but he could see you. This is one explanation for why some people are randomly abducted in the wilderness as if they had been snatched into the air and are found in locations they could never get to on their own in the amount of time they were missing as if they were either set down or dropped from the sky. An example of possible interactions with upper dimensional beings was a woman in Ohio sitting in a tree stand sees a weird hazy distortion in the shape of a kind of humanoid form in the trees in front of her at the same time school kids see a weird orb at the edge of the woods and hear a weird sound. The twilight effects of the sun could have allowed her to perceive a small angular portion of this being to be aware something was moving but that would be all if even possible. She took a picture of the area where the distortion had been and the resulting photo was distorted as if something was up close, The photo resolution was also much lower setting than the camera was capable of producing and had far less data than other photos take of the same spot. Whatever she interacted with momentarily was able to bend physics to distort our world. This being said aliens that are other dimensional, how far advance are they, depending on dimensions it would mean judging by how they affect our world. For example a 5th dimensional being could easily grab a person and fling them to the far corners of the planet. But even then they might be caveman equivalent of our society. However a more technologically advanced civilization might be able to bend physics in order to interact with particles of our dimension and do so at a an exponentially fast rate. A higher dimensional being with the technology to bend the physics of our dimension may also be operating at a much different concept of time or have no perception of time at all. Think when we draw 2 dimension cartoons, there time takes place however fast we say it does in the length of the video. However for us it all happened in the span of 2 minutes and 40 seconds and at anytime we can go into editing and change a freeze frame of the event. For them time could be fluid or existing all at once depending on the dimension that are in. So how should we scale a civilization that can warp our dimension (ie how we perceive the known universe) I mean them talking to us would be like us talking to our cartoon characters and pretending they are real beings.

  15. Outmercury _

    Outmercury _

    18 uur geleden

    I subscribed for the birbs

  16. Somebody insane

    Somebody insane

    19 uur geleden

    maybe the alien r smart enough to realize living is pointless so they destroy their own civilization or because lightyear make us thought it was not develop yet

  17. kak_has_eyes


    21 uur geleden

    The reason why even god-like aliens don't pay us a visit is because of this one platform called *"twitter"*

  18. carl hindsgaul

    carl hindsgaul

    21 uur geleden

    Seems like a ridiculously big jump from Starsystem to Galaxy.

  19. DPowered Smith

    DPowered Smith

    21 uur geleden

    If we meet a species more advance than us but similar to us they would either destroy or enslave us and call it a mercy

  20. Gacha with Joseph

    Gacha with Joseph

    23 uur geleden

    This guy is probably the smartest person when he is talking about space

  21. Gijs Sleijffers

    Gijs Sleijffers

    Dag geleden

    Maybe we´re just an experiment species of some aliens

  22. The Hudson Hornet

    The Hudson Hornet

    Dag geleden

    Bro at 4:43 he used aruabesh and I’m so mad I forgot how to read that lol

  23. Peking Dux

    Peking Dux

    Dag geleden

    Type 5: the merch

  24. roberto armstrong

    roberto armstrong

    Dag geleden

    Sorry, but I don’t think we’ve finished draining the swamp yet guys...

  25. Victor Isaac Babia

    Victor Isaac Babia

    Dag geleden

    Kurzgesagt: *adds troll face easter egg at **5:00*

  26. Random_ Stranger_

    Random_ Stranger_

    Dag geleden

    What if god was actually an omega level being that bought a create your own universe kit

  27. John Carman

    John Carman

    Dag geleden

    How do I apply for Alien food stamps and get them to approve the payout? Im stuck on earth.....

  28. Gabriel Martino

    Gabriel Martino

    Dag geleden

    “Our merch is the easiest way to support what we do, and keep our videos free for everyone” This channel is so refreshingly logical and honest, and SO interesting, you guys are seriously changing the content game, and doing so in such a humble fashion. Bravo Kermit sight, bravo.

  29. wood. exe

    wood. exe

    Dag geleden

    just tell the US theres oil on other planets..... we will end up there real soon

  30. Cave light

    Cave light

    Dag geleden

    imagine being able to be so imaginative and curious about physics but limiting your thoughts on human nature lmfao

  31. JamesPinecone


    Dag geleden

    1:08 i wanna play stellaris now

  32. *-. Killua .-*

    *-. Killua .-*

    Dag geleden

    Uh we went to 2 before making it to one because we are inhabiting mars soon so like we skipped- mind explaining

  33. FlygonDusty


    2 dagen geleden

    8:24 “Superclusters” Me, an idiot: mmm, cheese

  34. Paul S

    Paul S

    2 dagen geleden

    we can't detect any other civilizations because they are likely too far. our own activity is minuscule compared to our solar system and we have to get to a range of things to inspect. we're barely able to inspect our own system and it takes great effort, time and resources. 2000 LY or less for radius of detection for our transmissions? our signals have not gotten out that far yet lol. we won't be discovered for almost 2000 years if anyone else is looking as we are and are at our level of civ

  35. 月光Angelcc


    2 dagen geleden

    Like he said. We are just ants. Imagine what the difference between humans and ants are. Now just imagine that onto a more advanced group of beings

  36. joevertible


    2 dagen geleden

    real question is, why haven't we sped up space/stellar technologies?



    2 dagen geleden

    Someday ebay will start delivering from planet too planet

  38. joshua rac

    joshua rac

    2 dagen geleden

    Cartoons help with a.d.d. Me learning!!



    2 dagen geleden

    Simply genius 👍❤️❤️

  40. TheWorldsnotenough


    2 dagen geleden

    After type 4...we become interDimensional beings. Funny. As this vid keeps playing. If there were any type 2 or 3 near by in otter edges of our galaxy, we’d have evidence... Clearly your experts are not acknowledging the TicTac or Pentagons recent sightings and disclosures or Bob Lazers reports for the last 40 years.

  41. sosban 3

    sosban 3

    2 dagen geleden

    What if Aliens are just humans, but they are failed to make by got.

  42. VolTer


    2 dagen geleden

    I've seen aliens! I even took out my 144p camera to take a blurry photo and a shaky video footage.

  43. Paulo Mangano

    Paulo Mangano

    2 dagen geleden

    at some point they probably realize that life is pointless and cease being greedy expantionist.

  44. jany krupa

    jany krupa

    2 dagen geleden

    Theres 100 percent chance aliens or some creatures exist because the space is that big nobody can imagine and its not possible we are only one in the universe xd

  45. Huffyy DT

    Huffyy DT

    3 dagen geleden


  46. Artour Babiev

    Artour Babiev

    3 dagen geleden

    Born explore to late too earth explore born to early too Born time in to just learn english language - Master Oogway

  47. Matt


    3 dagen geleden


  48. Richard Pederiane

    Richard Pederiane

    3 dagen geleden

    Senku i leave the rest to you

  49. chanmikaCB


    3 dagen geleden

    For now we are ants who are thinking that dinosaurs are creators of us arent we

  50. litbeatzzz


    3 dagen geleden

    Who created type Omega civilization

  51. John McKay

    John McKay

    3 dagen geleden

    God is an Omega human that lived in a previous version of our universe, now he is trying to help us become Omega humans.

  52. Rajnik tarapara

    Rajnik tarapara

    3 dagen geleden

    So he’s just described god!

  53. Michael Kong

    Michael Kong

    3 dagen geleden

    my brain just melted in the span on 11 minutes

  54. Mikezy


    3 dagen geleden

    Cmon, you do know that aliens are invisible to humans, right?

  55. Despacito


    3 dagen geleden

    If we sent a message to the sun, that would take 8 minutes to come and 8 minutes to have an answer, so in total we would have a 16 minutes pause between question and answer, so if we sent a message to an 1000 light years distant star, that would take 2000 years to have an answer, there might be lot of life, we just can't see it because of slowiness of light, some start we see on the sky, may not be there anymore

  56. Aaron Teague

    Aaron Teague

    3 dagen geleden

    “This would sort out are quarrels” what you mean disprove religion via showing evolution on different planets being the reason why if they do find something, we won’t know for a long long time

  57. Lone Wolf

    Lone Wolf

    3 dagen geleden

    Wouldn't a type omega living being translate simply to a God? And if there is plenty of them, Gods among Supreme Gods

  58. Salvatore Raval

    Salvatore Raval

    4 dagen geleden

    Even evolution is not a linear scale that ends in sentience or civilisation. We only evolved this way because of the conditions and challenges we where presented with. Imagine what other life had to go through and the path of evolution they take



    4 dagen geleden




    4 dagen geleden

    4:58 July 2025 Milky Way “Broken Signal” Event

  61. Gaz Mazk

    Gaz Mazk

    4 dagen geleden

    Made me wish there was a game that followed this premise :(

  62. gor


    4 dagen geleden

    i cant wait for space racism

  63. Βακουφτσής Ιωάννης Κυριάκος

    Βακουφτσής Ιωάννης Κυριάκος

    4 dagen geleden

    Since we are looking everywhere WE think is possible, I guess we can only find something similar with earth life forms. Anyway, Kardashev scale might be wrong, maybe between type 1 and 2 or 2 and 3 , we will find a way to become omega type civilization.

  64. Nevil Douglas

    Nevil Douglas

    4 dagen geleden

    Why would you assume that there are no level 4 and level 5 societies, just because our primitive minds might not be able to detect or comprehend such a society?



    4 dagen geleden

    Keep in mind as much a scientist talking to some doc maker or NLcameras channel might want to bloviate about - we have barely looked around and even where we look, could be missing something that will turn to be obvious once we have seen it.

  66. Jonnie Chuah

    Jonnie Chuah

    4 dagen geleden

    There may even be the "mega" stage. Its where they use infinity and space radiation

  67. jennifer lee

    jennifer lee

    4 dagen geleden

    can you make a video about type 3 civilization on the kardashev scale or other civilization please

  68. TerminalBoneCancer


    4 dagen geleden

    I’m tryna link up with some hot alien chicks Hmu 🤙

  69. FallingStars


    4 dagen geleden

    Summary: We are kinda dumb.

  70. mewmew pokèmon

    mewmew pokèmon

    4 dagen geleden

    wow! yay

  71. Technology and science

    Technology and science

    4 dagen geleden

    I'm back

  72. Technology and science

    Technology and science

    4 dagen geleden

    F*** you

  73. dengamleidiot


    4 dagen geleden

    I am a type omega

  74. Mock Gem

    Mock Gem

    5 dagen geleden

    Imagine that we are the Sahara desert of the Galaxy where advanced civilizations just see us as the useless piece of space whose only purpose is just to entertain them with our primitive behaviors when they driveby our solar system

  75. SwaghettiYolognese


    5 dagen geleden

    Every time I watch videos like these I think about how I am gonna be dead before even seeing such things with my own eyes. It is really depressing :/

    • Idin Ghotbi

      Idin Ghotbi

      4 dagen geleden


  76. [ ]

    [ ]

    5 dagen geleden

    i love this music

  77. Sanket Gupta

    Sanket Gupta

    5 dagen geleden

    before this, unfortunately World war 3 will end humanity

  78. Benjamin Gal-Or

    Benjamin Gal-Or

    5 dagen geleden

    MR Kurzgesagt, ARE YOU A SCIENTIST? or just a self-appointed of what DOES NOT EVEN RISE TO BE WRONG IN SCIENCE? of videos followed by One-Liners, who can't even write more than one line, nor read a few, while tainting science and this civilization by REPLIES? Some of your One-Liners also trash facts reported by thousands dedicated Drs., nurses and health-care workers in ~180 countries, as untrusted and somehow wrongly relating me with "anti-vaxxer", leaving no alternative but to "Answer not a fool according to his folly, lest thou also be like unto him." King Solomon.

    • Alpha


      4 dagen geleden

      They always leave their sources in the video descriptions. If you truly have doubts about anything they say feel free to take a look there.

  79. Alessio Ughetta

    Alessio Ughetta

    5 dagen geleden

    Humans: "why there is nobody out there?!" Also humans: **have barely taken a look at the closest planet**

    • Urbain Havugimana

      Urbain Havugimana

      2 dagen geleden

      What if they don’t use radio signals and that’s what we haven’t found them

  80. Bebek Terbang

    Bebek Terbang

    5 dagen geleden

    Maybe we are alone

    • Donald Zrump

      Donald Zrump

      5 dagen geleden

      Fake news

  81. El Viajero Hambriento

    El Viajero Hambriento

    5 dagen geleden

    Honest question: you put ants at 0 on the scale. COnsidering they can create colonies, farm plants and animals, create structures and so on, wouldn't that put them between 0.25 and 0.5? Maybe their energy creation and consumption isn't measurable, but civilization-wise, they are not at level zero



    5 dagen geleden

    wow... And was thinking that human kind was selfish when believed that Earth is the center of the Universe...

  83. Everyone has an opinion

    Everyone has an opinion

    5 dagen geleden

    At least most of us are immortalized on the internet somewhere forever. Our memory can never be forgotten now. Can't say that about most of the previous humans before us

  84. Stelliferous Era

    Stelliferous Era

    5 dagen geleden

    I tend to think that we could figure out faster-than-light travel eventually. Humanity seems to be a species that calls things out as being "insane" and "impossible" but later eats those words when they make it a reality. Heavier-than-air aircraft, breaking the sound barrier, space flight, self-landing orbital rockets, etc., were all believed to be completely ludicrous ideas at some point in recent history. I think there are aspects in the laws of physics we don't fully understand that could lead to whole new frontiers of technology unimaginable to us right now. We'll never find out if we don't explore the idea and push innovation in that direction. Now, I understand that the challenges involved in making warp drive are several hundred orders of magnitude more complicated than any of the very Newtonian technological feats I just mentioned. All I'm saying is that our knowledge increases more every year, and we're constantly proving ourselves wrong and learning new things about how the universe works. In my opinion, it's ridiculous to think you can be 100% certain about what will and won't be possible in 500, 1,000, or 10,000 years from now if our current rate of progress continues.

  85. Itz Valid

    Itz Valid

    5 dagen geleden

    Type 700?

  86. Steven Ferrill

    Steven Ferrill

    5 dagen geleden

    What if we are just one population on earth and there’s a bother earth out there and with more humans

  87. Trevor Keen

    Trevor Keen

    5 dagen geleden

    Maybe God is just some dude in an Omega civilization with too much spare time.

  88. Ace -

    Ace -

    6 dagen geleden

    On another note, I would love to see a city management game with Kurzgesagt’s art style.

  89. Dainis Desa

    Dainis Desa

    6 dagen geleden

    Buut if there is a supercivilization that is mastered mega energy efficiency, like we are trying to do? Where does it rank

  90. vardarokean


    6 dagen geleden

    9:05 grenades in 4000 be like:

  91. Poppe Stäbler

    Poppe Stäbler

    6 dagen geleden

    Omega Civilization is God? 🤨

    • Александр Рожков

      Александр Рожков

      6 dagen geleden


  92. Nisha Joseph

    Nisha Joseph

    6 dagen geleden

    This would be a nice TV show on Disney Channel also my goals are beyond your understanding nice vids

  93. TheTrashCanKing


    6 dagen geleden

    8:34 bro what if our entire universe and existence is just some 5 year olds science project

  94. Vid Marinkovič

    Vid Marinkovič

    6 dagen geleden

    4:59 we do a little trolling

  95. Sandu alexandru

    Sandu alexandru

    6 dagen geleden

    the music be b a n g i n g

  96. Basscool 4k

    Basscool 4k

    6 dagen geleden

    We are powering someones car... thats sad

  97. cat powers

    cat powers

    6 dagen geleden

    makes me want to play stellaris

  98. Paradox G

    Paradox G

    6 dagen geleden

    "Discovery of aliens could help us get over our petty quarrels...." That's the funniest I've ever heard.

  99. Kunai


    6 dagen geleden

    If aliens did exist I feel like they wouldn’t be to far ahead of us but far enough for us to be confused

  100. RichardBlunts


    6 dagen geleden

    4:54 so that means that one noise ive heard about in NLcameras videos (that no one knows what it is or where it came from) might be some sort of comunication attempt from some other life form?