Aliens under the Ice - Life on Rogue Planets

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Out in the vast coldness of outer space, there are planets that travel alone through darkness without the boundaries of a system. Here’s how this can happen - and why these frozen deserts might secretly harbor alien life.

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  1. Kurzgesagt – In a Nutshell

    Kurzgesagt – In a Nutshell

    Jaar geleden

    There's brand new stuff in the Kurzgesagt Merch Shop. Check it out here:

    • Paul Brown

      Paul Brown

      Maand geleden

      @Ian Kombo 0

    • Tammy Parent

      Tammy Parent

      2 maanden geleden

      But is there is deadly life out there that concept would be disturbing and destructive Candlelight the channel can you please keep me posted but is there an intelligent why there would seek to learn our own that by the ocean and what technology will you what I am's reported back in the past and what are ions what we need to sustain and survive some would sustain and survive from army but I'm not at 1 it would be hydro plant CSUN on our life forms who live down in the government the black smokers bottom of the earth if I can play you know but it's so told you life will never Escape maybe one day we find a new species could be dangerous or do I say go like the Xenomorphs in sending walk and crawl back latch onto people's faces and then lay in Leo Indian wait to one day that equal had in a baby with birth out and start earning some kind of species but the name as the part is called a chestburster

    • Ardiak Beltz

      Ardiak Beltz

      2 maanden geleden

      You miss the low posiblility of a giant gas rogue planet with a moon with Earth dimensions and composition, the giant gas planet can make warm the surface of the planet/moon..probably the life evolve in a perpetual night iluminate a bit by the giant rogue gas planet.. If our specie don't extinct it self with our infinite selfishness, maybe a way to live after the sun become a red giant star, an d latea white dwarf and die, will be add's materials to Europe or other Jupiter moon with asteroids and comets to make bigger & terraform it..but we are a young specie w hard to imagiith few hundreds thousand years of existence, only 5k of civilitzations, and 2 centuries of industrialitzation..we are dreaming with our specie living more time than the life it self on Earth..who in our short time life eyes is only an abstraction of time..

    • sin1399 sense

      sin1399 sense

      2 maanden geleden

      Could a meteor eject life from earth into our universe & the planets like the one that hit the dinosaurs Bacterium & life existed then and the blast was absolutely catastrophic could it of sent life harbouring debris into over planets over time ? Just wondering after the recent news of possible life on other planets & wondering if those frozen meteors in space could hold life until it’s defrosted like those virus & bacteria found on our planet in the Antarctic ? Love the work

    • Elijah Pates

      Elijah Pates

      3 maanden geleden

      yeh yeh no one likes ur merch:)) lol ur useless

  2. Darcy Rieger

    Darcy Rieger

    6 uur geleden

    it will find itself blocked by a rock hard layer of... piglins: sad pig noises

  3. GeoSpherical AeroSpace

    GeoSpherical AeroSpace

    12 uur geleden

    the wandering earth

  4. Odeneho Agyemang - Duah

    Odeneho Agyemang - Duah

    Dag geleden

    now i'm sad for those animals

  5. Formenot Foryousef

    Formenot Foryousef

    Dag geleden


  6. Buffalo Ben

    Buffalo Ben

    3 dagen geleden

    every American was sad at 6:04

  7. SeaseFire


    6 dagen geleden

    imagine if atlantis was just a civilization thriving during our planets ice age.

  8. voyager 37

    voyager 37

    7 dagen geleden

    Do you have something against brown dwarfs

  9. Naeng2 Study

    Naeng2 Study

    7 dagen geleden

    NLcameras team this is not a spam

  10. Naeng2 Study

    Naeng2 Study

    7 dagen geleden

    This is interesting About 9.3 billion sun could fit inside 987 million km2 radius and 1 light year having radius 9.5 trillion km Majority planets + moons in the whole Universe 93 billion light years plus 5.8x10 ^123 light years Are cold planets But some planets with large mass around 2 to 5.5 mass of earth like ogle 2005 blg 390lb could support life But there is no planet like earth in the whole Universe

  11. Umi No Arashi Games

    Umi No Arashi Games

    7 dagen geleden

    People who saw the gamma ray part and remembered the Kurzgesagt video on gamma rays

  12. Brent Gardner

    Brent Gardner

    7 dagen geleden

    The sound effects are actually pretty distracting.

  13. Allie Gottuso

    Allie Gottuso

    7 dagen geleden


  14. 25 years ago

    25 years ago

    8 dagen geleden

    If there exist is a link between nutrition and intelligence then we can rest for sure that there is no scenario with underwater intelligent life, when we humans discovered fire a gate to better nutrition was opened and let to the expansion of our brains but maybe I’m wrong.

  15. Hong Lo Van

    Hong Lo Van

    8 dagen geleden

    Could we all pay respects to the sub-brown dwarf that got roasted in the beginning

  16. Ricardo Brambila

    Ricardo Brambila

    9 dagen geleden

    i'm intrested

  17. Abdullah Aydoğdu

    Abdullah Aydoğdu

    10 dagen geleden


  18. Sid J

    Sid J

    10 dagen geleden

    Ice is not hard to break. If they become intelligent enough they might start using tools like bones or other hard substance to slowly break their way to outside.

  19. Mstfa


    10 dagen geleden


  20. michael bayer

    michael bayer

    11 dagen geleden

    ... its cool man - and i am a Single.

  21. Monica Chan UwU

    Monica Chan UwU

    11 dagen geleden

    I finally find this video 💖

  22. simateix


    12 dagen geleden

    We are very lucky indeed to exist on Earth

  23. Qaari


    12 dagen geleden

    Watch What If the Sun Disappeared? on Vsauce after this.

  24. The Byronator

    The Byronator

    12 dagen geleden

    This is the best educational channel, it is interesting, the gift shop is cheap and good quality and it has excellent good educational facts for school and is convenient. Keep up the good work!

  25. TheRubixGuy


    12 dagen geleden

    Kurzgesagt makes me want to learn more about science

  26. Mohit Shetty

    Mohit Shetty

    13 dagen geleden

    There might be intelligent life in some other world making videos or something like that saying how unlucky life would be to live in a planet in Goldilocks zone!!

  27. Naeng2 Study

    Naeng2 Study

    13 dagen geleden

    it is not spongebob cannot cook fire inside water

  28. keith yi

    keith yi

    13 dagen geleden

    I love your videos.

  29. Northerner


    13 dagen geleden

    Movie idea, a civilisation that breaks through the ice to discover the world above

  30. a kid falling apart

    a kid falling apart

    14 dagen geleden

    man i love..... *s p a c e*

  31. colorado841


    14 dagen geleden

    Intelligent aliens trapped under a growing sheet of ice: "We really need to figure out a way to stop global cooling."

  32. Majid Al Marzooqi

    Majid Al Marzooqi

    15 dagen geleden

    what if we put life on one of those will it make life will we make aliens???

  33. Thunderbolt85


    15 dagen geleden

    Imagine if someday we rescue intelligent life from a rogue planet's Ice, they will regard us as Gods who rescued them

  34. Ny'ygth'aal - Sothoth

    Ny'ygth'aal - Sothoth

    15 dagen geleden

    'ه̵̛́س̀́ي̴̵̵ل̸̡͡ڢ́̀͏ي̢ن̷̕͜ي̢ن̷̕͜ي̀͡͞ه̧̡͡͠و̡͠͏̴ن̷̨͝ي͘͠چ͘͠͝͠ ̀̕*ا̷̛͞͏͡و̵̴̧͝ا͞͡ك͘͏ي̸̀͟͜͡ت҉̨͜ي̸̵͢ي̸́҉͜͏ 'ه̵̛́ي̸́҉ي̨҉҉ي҉̸̵͠͝♫̀͝ ̴̴̧͢͝فه̵̛́ي̀͡͞ت҉̨͜ي̸̵͢ي̸́҉͜͏ 'ه̵̛́ي̸́҉ي̨҉҉ف ,ه̵̛́ي̸́҉ي̨҉҉فه̵̛́ه̵̛́ه̵̛́ه̵̛́ي̸́҉ي̨҉҉فه̵̛́ه̵̛́س̀́ي̴̵̵ل̸̡͡ڢ́̀͏ي̢ن̷̕͜س̀́ي̴̵̵ل̸̡͡ڢ́̀͏ي̢ن̷̕͜ي̀͡͞ه̧̡͡͠و̡͠͏̴ن̷̨͝ي͘͠چ͘͠͝͠ ̀̕ا̷̛͞͏͡و̵̴̧͝ا͞͡في̸́ ز̡̰͙̜͍̫̘̗͡ي̡̰̦̜̱̬̲̩̳̝̟̗͈̀́̕͟ل̀͏̠͖̙̪͎̭̼̪͖̱̗̠͇̪̫̣̻ي̸̯͈̙̻̪̻̖̱̫͚̥̪̞̤͓͜͞͠ͅͅه̵̢̫̲͎̭͠ ‍ي̸́҉ي̨҉҉ي҉̸̵͠͝ي̸́҉♫̀͝ ̴̴̧͢͝فه̵̛́ي̀͡͞ت҉̨͜ي̸̵͢ه̵̛́ي̸́҉ي̨҉҉ف ي̸́҉ ̴̴̧͢͝فه̵̛́ي̀͡͞ت҉̨͜ي̸̵͢ه̵̛́ي̸́҉.

  35. Chris OFree

    Chris OFree

    16 dagen geleden

    The same thing can be said to us. What if there's a fifth dimensional being out there seeing us as ignorance trap in our 3d world without ever knowing theres a whole different world, we can never comprehend. Edit : its interesting this topic got so many attention. what i mean about 5d is just an example of what might out there that we can never grasp. What if there's a whole different universe out there beyond our space n time? with completely diff law that exist before the big bang. The world hosting bubbles of universes that we can never cross, just like the sheet of ice.

  36. Chickalo


    17 dagen geleden

    Oh, so the ice becomes unmineable even without a netherite pickaxe?

  37. Enlil of Sumer

    Enlil of Sumer

    17 dagen geleden

    I love your videos we need more 🤘🏽 keep posting ❤️

  38. Mars Tutorials

    Mars Tutorials

    17 dagen geleden

    this guy is the teacher that makes more money than other teachers

  39. Spankyfriedwombat


    18 dagen geleden

    Hopefully earth gets flown out of orbit before the sun explodes

  40. Nobody Nobody

    Nobody Nobody

    19 dagen geleden




    19 dagen geleden

    Imagine the culture shock of an intelligent species like this, miles of thick ice above them and bedrock below them with no way of making technological progress. All of a sudden human burst through the ice and they see something called the universe when they thought that their little ocean pocket was all to ever exist, it would be mind bidding



    19 dagen geleden


  43. Asima Baser

    Asima Baser

    19 dagen geleden

    "They might never realize that there is such a thing as outside, and assumed that their small world is all there is ... ignorant of the unbelievably big universe above the ice." What if the same applied to us, and there were something beyond the observable universe that we will never be aware of due to the limits of our resources?

  44. KaeYoss


    19 dagen geleden

    Locked in by kilometers of ice above you, never knowing that there is so much more beyond that barrier that is only a hindrance to you, not to the rest of this unimaginably huge place. Makes you start wondering if we have a metaphorical ice sheet above our metaphorical heads, too. Others might look at us and think "they might never know how much bigger reality is". What if the universe isn't all there is, and those outside it find the idea that someone could think existence has a beginning and an end hilarious? What if those 4 dimensions we know aren't all and we're being observed constantly?

  45. ardelean ion

    ardelean ion

    19 dagen geleden

    Kurzgesagt ? Wtf is that? Put a real name, fooking nazi.

    • Mr.Guigo Gameplays

      Mr.Guigo Gameplays

      14 dagen geleden

      Lion? Wtf is that? Put a real name fooking furry

    • Gr33N m33n gamer

      Gr33N m33n gamer

      14 dagen geleden

      *Dont watch the channel then cause its not likely they wil listen to you*

  46. Merik Malhads

    Merik Malhads

    19 dagen geleden

    Just here to say that you can forge metals with pressure so it's not impossible for this civilization to do that. It's dangerous for us cause we live at one atmosphere or so but in the deep ocean, who knows. Perhaps water pressure might be the mechanism or choice for an early bronze age rouge planet ocean civilization

  47. Gustav Zhang

    Gustav Zhang

    20 dagen geleden

    I am a human viewer and I enjoy this video very much.

  48. excuse me

    excuse me

    20 dagen geleden

    I get more and more weird by the day

  49. Alex


    20 dagen geleden

    The thought of earth being thrown out of orbit into empty space and freeze is so deeply existentially horrifying. Like, yeah sun will turn into a red giant and then black hole or whatever but it will take billions of years and by that time... We just *might* develop technologies that will allow us to colonize planets outside solar system. But a thing like this could happen anyday, while we are not ready to leave yet. Absolute powerlessness of us, of our nations, of our leaders, of our brightest minds, or technology, of us as a species in a face of such an event is terrifying.

  50. Allie Gottuso

    Allie Gottuso

    20 dagen geleden

    Hey 🙏, working on to get 100% "handmade" absolutely "high quality bowls fair trade from Nepal" for future soundscape / music videos. Found some which are chosen by myself and singing bowl therapists in Nepal, chosen individual with love and harmony based on each chakra 😇 The sound of these bowls which I found is pleasantly soft and warm with long-lasting vibrations. As some of you guys know sometimes I record also my own music in studio of a friend who lives in my area, will make recordings there then. Will maybe take some time, but will come 👌. My friend has amazing microphones to capture those beautiful sounds of this bowls. Have a beautiful weekend with lots of love & relaxation Joerg 🌈 Love, light & peace

  51. pnasmrmc


    20 dagen geleden

    Kamino type beat



    21 dag geleden

    At 4:57 that snail is an adventure time reference

  53. Philly Cheesesteak

    Philly Cheesesteak

    22 dagen geleden

    F*** you I'll teach myself

  54. Philly Cheesesteak

    Philly Cheesesteak

    22 dagen geleden

    Kind of like our f****** world possible to leave but not because of any construct created by God but something created by man called money

  55. Philly Cheesesteak

    Philly Cheesesteak

    22 dagen geleden

    An icy grave forever? Just trying to kill the children's fire before they f****** turn 13 oh s***

  56. Philly Cheesesteak

    Philly Cheesesteak

    22 dagen geleden

    Who the hell wrote this shit!?

  57. Philly Cheesesteak

    Philly Cheesesteak

    22 dagen geleden

    Wow so he even called his own s*** completely absurd

  58. Philly Cheesesteak

    Philly Cheesesteak

    22 dagen geleden

    All of this is junk! The soundtrack is okay I guess

  59. Philly Cheesesteak

    Philly Cheesesteak

    22 dagen geleden

    Hahaha we don't fucking deserve to search out those world's at all!!! Not one fucking bit. We can't get a hold of our own world from these assholes

  60. William Courts

    William Courts

    23 dagen geleden

    "They're a sort of failed star, and we'll now stop talking about them" - my parents talking about me

    • Cool Cat Gaming

      Cool Cat Gaming

      22 dagen geleden

      Hey maybe dont copy other peoples comments word-for-word



    23 dagen geleden

    Black sus, he jumped out of vent

  62. Harriet Harlow

    Harriet Harlow

    25 dagen geleden

    I'd never thought about rogue terrestrial rogue planets, but some of them might well harbour life under the ice, perhaps in pockets of liquid water near hydrothermal.vents. Life does pretty well near the vents on earth, so I see no reason that it couldn't happen elsewhere.

  63. johannes rezeq

    johannes rezeq

    25 dagen geleden

    Could we all pay respects to the sub-brown dwarf that got roasted in the beginning

  64. Kevin


    27 dagen geleden

    war seems to be ewrewhere

  65. Francine Caldwell

    Francine Caldwell

    27 dagen geleden

    This year we found out bacteria in the shape of cables that literally eat and transport electrons so there was an electrical current at the bottom of the ocean. That ends up heating the water around it. If life wants too - it will find a way

  66. Doggo Playz

    Doggo Playz

    27 dagen geleden

    ''protects the planet from gamma rays'' Me: okay lets start freezing the earth again see if betelgeuse or etha carina wanna try to kill us-

  67. Marc Zhang

    Marc Zhang

    28 dagen geleden

    What if a rogue planet re-entered a system?

  68. Daniel Rockett

    Daniel Rockett

    28 dagen geleden

    Kurz, my buddy, did a Brown Dwarf once insult your family or something?? You do NOT like those guys hahaha

  69. Slen Tox

    Slen Tox

    28 dagen geleden

    I know this may sounds stupid, but isn't it possible that they get heat from there travelling speed

    • Carson Lawler

      Carson Lawler

      27 dagen geleden

      There's no friction in the vacuum of space, so it doesn't matter if it's traveling near speed of light.

  70. Saif Zuaiter

    Saif Zuaiter

    28 dagen geleden




    28 dagen geleden

    Alein : * exists * star wars fans: hello there

    • Ethan Iles

      Ethan Iles

      26 dagen geleden

      i totaly get it XD

  72. Blazing Productions

    Blazing Productions

    28 dagen geleden

    or humans drill through the ice and free them all

  73. Stachan


    29 dagen geleden

    Shhhh... No tears.

  74. パイポテトパイ


    Maand geleden

    Kurzgesagt really hates brown dwarfs...

  75. Critika [Salihmeylani]

    Critika [Salihmeylani]

    Maand geleden

    İs it me or does it sound like Undertale?

  76. Dylan Phung

    Dylan Phung

    Maand geleden


  77. miracle wilson

    miracle wilson

    Maand geleden

    Miracle Wilson

  78. miracle wilson

    miracle wilson

    Maand geleden

    Miracle Wilson

  79. Andrés Eduardo Clavasquin Regalado

    Andrés Eduardo Clavasquin Regalado

    Maand geleden

    Life in The Nether...

  80. BeSquareorBeThere


    Maand geleden

    Kurzgesagt: It's not like you discover fire underwater. Sodium: I'm gonna do what's called a pro gamer move.

    • BeSquareorBeThere


      Maand geleden

      Ah, thanks for highlighting this wisdom for me and my errors

    • Tall Troll

      Tall Troll

      Maand geleden

      Nice try, but no. Sodium in water forms sodium hydroxide, and liberates hydrogen gas, which is what you see burning. Without free oxygen present, you'd just see bubbles of hydrogen. There are a few metals that can be made to burn underwater, but only if you supply the oxygen in the form of other oxygen rich chemicals, none of which can realistically be developed without a more advanced tech base than you could develop without fire

  81. Nathan -

    Nathan -

    Maand geleden

    Imagine being the astronaut who licked the ice.

  82. 123TeeMee


    Maand geleden

    In terms of intelligent beings living in deep oceans, perhaps they use bioluminescent animals for light, geothermal vents for low tech energy, then develop nuclear fission or fusion energy that will outlive the geothermal production of the planet. With the intense pressures at those depths, metals would have higher melting points so would be even harder to process and shape though.

  83. Sean Leung

    Sean Leung

    Maand geleden

    Imagine activating the sun’s stellar engine and then accidentally roping in a rogue planet with life on it.

  84. spec ops cat

    spec ops cat

    Maand geleden

    That bird had a strong arm to hold that giant tentacle 07:21

  85. The Generalissimo

    The Generalissimo

    Maand geleden

    This was under a search for "Consume Prilosec" I'm always up for re-watching Kurzgesagt.

  86. GuyInBacon ?

    GuyInBacon ?

    Maand geleden

    ice as hard as bedrock? Say no more, this whole operation is cancelled.

  87. Shockwave32 Gaming&More

    Shockwave32 Gaming&More

    Maand geleden

    My main takeaway from this channels videos: This universe has us hopelessly outmatched..

  88. nick


    Maand geleden

    The idea of life on a rogue planet traveling through space sounds like the cosmic version of animal dispersal

  89. Samantha Brown

    Samantha Brown

    Maand geleden

    Kurzgesagt know for ther bird people

  90. [Gd&Rblx] Super Lol

    [Gd&Rblx] Super Lol

    Maand geleden

    guess whos gonna open universe sandbox to see this actually happening

  91. Shane Ellis

    Shane Ellis

    Maand geleden

    the sun of earth could also possibly be heating up our planets core at the same time as well keeping us alive for even longer

  92. Brown Dwarf

    Brown Dwarf

    Maand geleden

    0:56 uh, words hurt!

    • sarah gouasmi

      sarah gouasmi

      17 dagen geleden

      its okay, we know you're doing your best

  93. Jaden Dean Streicher Billerbeck

    Jaden Dean Streicher Billerbeck

    Maand geleden

    i still remember when this was still new

  94. iTMD


    Maand geleden

    Rogue plants: we’re frozen dark deserts and our ice is as hard as bedrock! Trisolaris: *hold my long nights*

  95. Brian Scott Towne

    Brian Scott Towne

    Maand geleden

    6:09 Technically... No... They COULD melt some metals by taking stones and hovering them over Black Smokers. Of course, it would be difficult, but they may be able to forge tools at some point. Of course, they would never discover electricity, but they would be able to do quite a lot with what little they have. They wouldn't be able to totally escape the planet, but who knows.

  96. theisgood0


    Maand geleden

    You should try the game Barotrama it’s a sub game and you are Jupiter. It’s really interesting if anyone wants to pick it up it’s on steam.

  97. Mah Di

    Mah Di

    Maand geleden

    4:56 the snail from adventure time is there too, interesting

  98. 吳尚融


    Maand geleden

    Like Tengen Toppa: Drilled through ceiling "Wait, there is wolrd outside?! "



    Maand geleden

    4:59 that’s a nice adventure time reference

  100. Ryan Crowell

    Ryan Crowell

    Maand geleden

    the concept kinda reminds me of the beginning of gurren lagann a bit