The Most Dangerous Stuff in the Universe - Strange Stars Explained

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Inside neutron stars we can find the weirdest and most dangerous substance in the universe: Strange matter. What is strange matter, how dangerous is it and what can it tell us about the origin of the universe?
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Help us caption & translate this video!


  1. Kurzgesagt – In a Nutshell

    Kurzgesagt – In a Nutshell

    2 mesi fa

    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.

    • Felix Reuß

      Felix Reuß

      2 giorni fa

      Yo i thought of a way how humankind could survive the cold-death of the universe. I know its just a theory but please follow me on this. So we know if humans survive long enough we can become an atleast type 2 society. If we get this far we could decompose dead stars and gas planets drive them both together and create a star artificially. I must admit i know very little about it but it could be possible. I mean we could create a dyson sphere or smthng around it and transport it via an hyperspace engine to a gas planet decompose both and see the star form it self. With decompose i mean blowing them up but with much less boom ya know? Maybe a laser of sorts or other things. Its crazy i know but it sounds great in theory. Waht do you think? Let me know ^^

    • cyka neu

      cyka neu

      5 giorni fa


    • Jenny Scott

      Jenny Scott

      6 giorni fa

      Thank you 😊 for your support and your name and the best for your as well as your own personality

    • Pandasss


      11 giorni fa

      What happens if it toishes a human? Will it turn us to superheroes 😂 ?

    • Anthony Umana-Paniagua

      Anthony Umana-Paniagua

      20 giorni fa

      I past the 6th grade 😀

  2. beata uryszek

    beata uryszek

    2 ore fa

    4:05 *Perfectly balanced - as all things should be.*

  3. Aileen lanip

    Aileen lanip

    4 ore fa

    Why anti matters cant destroy strange quarks?

  4. Collsal Cranks

    Collsal Cranks

    14 ore fa

    Can u do a video about how to pronounce your name

  5. Marshmello king 101

    Marshmello king 101

    16 ore fa

    4:18 Sounds like a Sci-Fi movie.

  6. Евгений Эдельман

    Евгений Эдельман

    20 ore fa

    1:56 Qua

  7. Jim Gu

    Jim Gu

    21 ora fa

    Yeah,It's cool..... Or not,I cannot even understand one sentence......

  8. 루이스


    Giorno fa

    Esté canal es oro 🔥🔥

  9. LeTtRrZ


    Giorno fa

    I think if strangelets really we’re flying around, we would have seen at least one star get infected by now. I don’t think we have ever seen any anomalous conversions by stars to strange stars.

  10. Sr G

    Sr G

    Giorno fa

    nothing is beyond my imagination even reality its self



    Giorno fa

    Is this guy actually a scientist or just reading this of wiki?



    Giorno fa

    Great. Now we have a sub-nuclear plague.

  13. GamingInside 1

    GamingInside 1

    2 giorni fa

    So one drop of strange quark will make the sun smaller? What if this will happen in the next 5 billion years when the sun is a lot bigger.Will it be the size of the sun in the present?Will the quark make the sun stable again? Will it make the sun live more?

  14. no


    2 giorni fa

    So I will just shot it at planet and destroy it... Ideal weapon created

  15. Metin Bogaz

    Metin Bogaz

    2 giorni fa

    Why does it look like the thing in Ricks portal gun? Coincidence? I think not!

  16. Dvrtagnan crossland

    Dvrtagnan crossland

    2 giorni fa

    I love this muhfuckas voice no homo

  17. Ty Ice Blaze

    Ty Ice Blaze

    2 giorni fa

    Kurzgesagt: This substance is capable of death within natural resources. Me: I'm never going outside again.. Strange boi: wHaT wHy nO0 i nEeD maH f0d

  18. Scarecrow Studios

    Scarecrow Studios

    3 giorni fa

    6:20 Rick, I Think Your portal Gun Is Malfunctioning

  19. Doppler


    3 giorni fa

    basically rick and morty, think about the truth behind some thoughts that involve some thinks and research on your own

  20. Satya Panigrahi

    Satya Panigrahi

    3 giorni fa

    Frightening, mesmerizing and absolutely beautiful.😍

  21. Putri putriii

    Putri putriii

    3 giorni fa


  22. Putri putriii

    Putri putriii

    3 giorni fa


  23. Roasted Toast

    Roasted Toast

    3 giorni fa

    4:06 thanos:as everything should be...

  24. Chief Hamhawk

    Chief Hamhawk

    3 giorni fa

    “All the empty space is now filled with particles that really don’t want to be close to each other.” You just summarized every school dance ever

  25. Sage Blyth

    Sage Blyth

    4 giorni fa

    2:19 That's the cutest thing I've seen today

  26. SirDoi


    4 giorni fa

    Did Dr. Strange make this matter to bend rules?

  27. Shounak Kale

    Shounak Kale

    4 giorni fa

    Very nice video

  28. Charmaine Russell

    Charmaine Russell

    4 giorni fa

    I would like to forget about strangelets....

  29. MrMoticuko


    5 giorni fa

    Stranger Things confirmed

  30. Kelsang Gyudzhin

    Kelsang Gyudzhin

    5 giorni fa

    2:31 Oh god their little faces I love them I just can't even XD

  31. Kutluhan Bilgeşah Bayzan

    Kutluhan Bilgeşah Bayzan

    5 giorni fa

    What if humans use strangelets for weapon world and galaxy is be die.

  32. Iustinian Motac

    Iustinian Motac

    5 giorni fa

    Thank you for existing.

  33. Taufik Nur Rahmanda

    Taufik Nur Rahmanda

    5 giorni fa

    I have a different though about this. I think the core of neutron star is a very small singularity and maybe that's a dark matter; no light can illuminate it and it's not harmful, it bends space and time but can't interact with physical thing because of its size. This is just my hypothesis though.

  34. TheFamousArthur


    5 giorni fa

    Where are CHARM, BOTTOM, and TOP quarks?

  35. Albert25012501


    5 giorni fa

    So....that would be a really bad idea to forge THAT hammer for Thor.....

  36. Cassia Chloe

    Cassia Chloe

    6 giorni fa

    this animator must smoke a lot of dmt its beautiful

  37. Bianca Pilichi

    Bianca Pilichi

    6 giorni fa

    Kurzgesagt's videos always give me a slight, ancestral anxiety

  38. mtilford


    6 giorni fa

    So...Strange matter might work like Vonnegut's "Ice-9?" Between this and the potentially lurking vacuum decay catastrophe, I don't even know why I put on pants anymore.

  39. 윤우성


    6 giorni fa


  40. Dan Cooper

    Dan Cooper

    6 giorni fa

    I'm not going to worry about it.

  41. Eurus


    6 giorni fa

    doctor strange: hOLD MY BEER

  42. P G

    P G

    6 giorni fa

    So that is a tiberium.

  43. keith dunham

    keith dunham

    6 giorni fa

    really an ad about tat stupid ark in kentucky ??

  44. SCRUMB


    6 giorni fa

    Strange matter: *Exist* Dr strange: Strange up boi!

  45. Nathan Stene

    Nathan Stene

    7 giorni fa

    Hey, I study physics in Brussels and I'm reading a few scientific articles on the subject. In particular, it's been 35 years we know strangelets are not dangerous whatsoever. Here it is, supported by all background and calculations you might want to check : "If quark matter with strangeness is bound, then energetically it can grow indefinitely by absorbing nucleons. On might at first think that quark matter would be dangerous in contact with ordinary matter, but this is not the case. [...] To balance the chemical potential difference, there will be an almost equal electrostatic potential of +50MeV at the surface of (and throughout) a nugget of quark matter, this potential will be more than adequate to repel positively charged nuclei at ordinary temperatures or at reasonably low velocities. Quark matter is in this respect no more dangerous than oxygen." Edward Witten, "Cosmic separation of phases", Physical Review D,1984 Also, I have checked your source for your "end of the world" theory - your source EXPLICITELY says the scenario is unlikely because it would mean having negatively charged strangelets. Once again I'm a bit disappointed by the way you guys transmit scientific information.

  46. XL Gamer

    XL Gamer

    7 giorni fa

    Wait he if a strange matter enter to our atmosphere so it will transform our atmosphere to strangemoshper so it is meaning........... SmOkE wEeD eVeRyDaY (don't use weed for you and people who loves you) (Sorry for bad my bad english there is can be mistakes)

  47. Da Drumma

    Da Drumma

    7 giorni fa

    Maybe strange matter is the ultimate form of existence and we're fools to resist assimilation.

  48. LegendaryDoge


    7 giorni fa

    How to make this video 2 second long Strange Matter is Strange

  49. Adasha Stewart

    Adasha Stewart

    7 giorni fa

    Being that black holes are possibly natural universal time machines I don't know if throwing strange matter into one is a good idea if we had the means to do so. You're literally shooting in the dark

  50. World Shell

    World Shell

    7 giorni fa

    Who knows this strange stuff can be used as unlimited power source that could disobey thermodynamic laws

  51. Depopa


    7 giorni fa

    thanks for the anxiety

  52. Fancy Hotdog

    Fancy Hotdog

    7 giorni fa

    Kurzgesagt: Perfectly dense, perfectly stable, indestructible. My brain: *Perfectly balanced, as all things should be*

  53. Regine Young

    Regine Young

    7 giorni fa


  54. Aristides e a Galáxia

    Aristides e a Galáxia

    7 giorni fa


  55. Oliveer Mitteer

    Oliveer Mitteer

    7 giorni fa

    Warum ist da ein Fidget Spinner im Thumbnail ? English: Why is there a Fidget Spinner in the Thumbnail ?

  56. MLG Master

    MLG Master

    7 giorni fa

    If you think we’re gonna freeze to death without a brilliant bright sun come to Manchester we don’t see the sun we see gray gray gray

  57. MLG Master

    MLG Master

    7 giorni fa

    D E N S E

  58. ganymede242


    7 giorni fa

    Quark should rhyme with quart, not fart. From Murray Gell-Mann "The Quark and the Jaguar": "In 1963, when I assigned the name "quark" to the fundamental constituents of the nucleon, I had the sound first, without the spelling, which could have been "kwork". Then, in one of my occasional perusals of Finnegans Wake, by James Joyce, I came across the word "quark" in the phrase "Three quarks for Muster Mark". Since "quark" (meaning, for one thing, the cry of the gull) was clearly intended to rhyme with "Mark", as well as "bark" and other such words, I had to find an excuse to pronounce it as "kwork". But the book represents the dream of a publican named Humphrey Chimpden Earwicker. Words in the text are typically drawn from several sources at once, like the "portmanteau" words in "Through the Looking-Glass". From time to time, phrases occur in the book that are partially determined by calls for drinks at the bar. I argued, therefore, that perhaps one of the multiple sources of the cry "Three quarks for Muster Mark" might be "Three quarts for Mister Mark", in which case the pronunciation "kwork" would not be totally unjustified. In any case, the number three fitted perfectly the way quarks occur in nature."

  59. Carolina Montealegre

    Carolina Montealegre

    7 giorni fa

    Someone thought about MOONCAKE from Final Space?

  60. Crisselle Heart

    Crisselle Heart

    7 giorni fa

    supernova to neutron star to quark matter to quark star to strange quark to strange matter to strangelets

  61. Rohan Shetty

    Rohan Shetty

    7 giorni fa

    Nope, I I still don't get it

  62. 53 ' er

    53 ' er

    7 giorni fa

    I thought matter means something different like "it doesnt matter" or is it used as well for Material

  63. 53 ' er

    53 ' er

    7 giorni fa

    Is this "strange thing" thing proven or do they just asume that

  64. Alexandros Huang

    Alexandros Huang

    8 giorni fa

    Wait a second wouldn’t the strange matter infect the neutron star

  65. vegetariansteak


    8 giorni fa

    so basically subatomic zombies

  66. Gamma Del Ray

    Gamma Del Ray

    8 giorni fa

    Being infectiously converted into some strange nuclear matter by a small droplet of neutron star core sounds kind of romantic in my eyes.

  67. SmilingDude 4325

    SmilingDude 4325

    8 giorni fa

    Bends the rules of the universe = SCP.

  68. Pig Ster

    Pig Ster

    8 giorni fa

    So strange quark is vibranium

  69. LooneyScouter


    8 giorni fa

    Is this just based on guessing? XD Can't imagine humans to understand something so complex and unknown.

  70. Nick Siegner

    Nick Siegner

    8 giorni fa

    I love how the whole commentsection is just memes about strange matter

  71. Zack Wright

    Zack Wright

    8 giorni fa

    So its like a sickness that could spread through out the Multiverse and destroy everything it touches....great

  72. SevenPheonix329


    8 giorni fa

    *wibbily* matter

  73. Steve Chu

    Steve Chu

    8 giorni fa

    Strange matter is made from Doctor strange

  74. hike rieger

    hike rieger

    8 giorni fa

    Time to play with strange matter *Drops someone: you doomed us all

  75. Burhan Sabaz

    Burhan Sabaz

    9 giorni fa


  76. KaylaByCandlelight


    9 giorni fa

    Can you do a video on an EMP

  77. Jace Baptista-Allan

    Jace Baptista-Allan

    9 giorni fa

    Is he suggesting that we use the densest thing in the universe as a source of power? Like: Scientist: picks up a drop of strange matter between tweezers Strangelet: travels straight to the center of earth, closing up the hole behind it

  78. Alex Ng

    Alex Ng

    9 giorni fa

    Denses material in the universe ( from weakest to strongest) Our Sun Neutron star Black hole Nokia3310

  79. Ghost Reportin'

    Ghost Reportin'

    9 giorni fa


  80. / CringeLord /

    / CringeLord /

    9 giorni fa

    I like how this channel uses birbs

  81. Leo He

    Leo He

    9 giorni fa

    Might just be me but isn't this argument just a bit flawed. Suppose strange matter does exist as noted and that theres a lot of it. If we assume that everything that contacts strange matter wants to change to enter the stabler and stronger form of the strange matter, and there was a lot of strange matter in the beginning of the universe, why isn't everything already strange matter. Why have we no knowledge of it until now. I want to note that in the beginning, Kurzgesagt noted that there is a chance that strange mattter converts everything it contacts yet for the entire second half, this off chance suddenly turned definitive, as if it were a fact rather then a theory

  82. Arthas The Lich King

    Arthas The Lich King

    9 giorni fa

    Plot twist:we are all already made of strange matter and we just don't know it

  83. Arthas The Lich King

    Arthas The Lich King

    9 giorni fa

    Plot twist:we are all already made of strange matter and we just don't know it

  84. Rubem Parisi

    Rubem Parisi

    9 giorni fa

    Im the subscriber number 8.955.515

  85. Drew Johnson

    Drew Johnson

    9 giorni fa

    It should probably be noted that this videos topic is hypothetical in every sense of the word. There has been no observational confirmation of stable stranglets, and current observations seem to favor the idea that neutron stars (or at least their surfaces) are comprised of regular, nuclear matter. Cool video, and a good treatment of a speculative and interesting theory, but you should probably make it more clear that this is more of an astrophysical curiosity than anything else right now.

  86. Flame Haze Mithril

    Flame Haze Mithril

    9 giorni fa

    Hmm, I just got an idea for a new missile warhead. Thanks Kurgezagt 😂

  87. ibrahim Tariq

    ibrahim Tariq

    9 giorni fa


  88. ibrahim Tariq

    ibrahim Tariq

    9 giorni fa

    amazing videos I subbed and liked THANKS ALOT!!!

  89. FLX Sam

    FLX Sam

    9 giorni fa

    Wow humans are definitely not ready to face that sort of problem

  90. Squishy Spud

    Squishy Spud

    9 giorni fa

    Kurz gesagt, wir stecken in der Klemme

  91. Obito Uchiha

    Obito Uchiha

    10 giorni fa

    I am more afraid watching Kurzgesagt videos compared to watching horror movies.

  92. Blade of Godolo

    Blade of Godolo

    10 giorni fa

    question, what the hell would happen if two black holes meet my first comment on any social media and this is it, its been bugging me for quite some time now. i know there are websites dedicated to this type of stuff but u guys make it simpler and to be honest fun to watch even if there a bit dark still i would like it if anyone could help understand.tnx a lot,peace!!✌️

  93. StijntjeHap


    10 giorni fa

    The more I watch kurzgesagt, the more i know about how much I do not know, and the more i start feeling like the world can end any second lol

  94. Arthur morgen

    Arthur morgen

    10 giorni fa

    Nah rdr2 is 1000000000000 more times dangerous

  95. LeQuiller


    10 giorni fa

    Zombie infection????

  96. Monique Ward

    Monique Ward

    10 giorni fa

    I don't know if it's just me but I listen to Kurzgesagt videos and mostly not watch it. I find the music here to be louder if not the same as the volume of the content audio. A little distracting. Other than that it's a good video. Thanks!

  97. Pro SKIMON5

    Pro SKIMON5

    10 giorni fa

    1:08 neuciai Edit 1: die

  98. Pro SKIMON5

    Pro SKIMON5

    10 giorni fa

    pin me

  99. KSR3


    10 giorni fa

    quarks = quacks

  100. Mat E

    Mat E

    10 giorni fa

    "In the beginning God"

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