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 miesięcy temu

    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.

    • cyka neu

      cyka neu

      2 dni temu


    • Jenny Scott

      Jenny Scott

      3 dni temu

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

    • Pandasss


      8 dni temu

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

    • Anthony Umana-Paniagua

      Anthony Umana-Paniagua

      17 dni temu

      I past the 6th grade 😀

    • conmadben


      27 dni temu

      Thx guys. I needed my monthly does of existencial crysis...

  2. Scarecrow Studios

    Scarecrow Studios

    Godzinę temu

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

  3. Doppler


    4 godzin temu

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

  4. Satya Panigrahi

    Satya Panigrahi

    7 godzin temu

    Frightening, mesmerizing and absolutely beautiful.😍

  5. Putri putriii

    Putri putriii

    8 godzin temu


  6. Putri putriii

    Putri putriii

    8 godzin temu


  7. Roasted Toast

    Roasted Toast

    18 godzin temu

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

  8. Chief Hamhawk

    Chief Hamhawk

    20 godzin temu

    “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

  9. Sage Blyth

    Sage Blyth

    Dzień temu

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

  10. SirDoi


    Dzień temu

    Did Dr. Strange make this matter to bend rules?

  11. Shounak Kale

    Shounak Kale

    Dzień temu

    Very nice video

  12. Charmaine Russell

    Charmaine Russell

    Dzień temu

    I would like to forget about strangelets....

  13. MrMoticuko


    2 dni temu

    Stranger Things confirmed

  14. Kelsang Gyudzhin

    Kelsang Gyudzhin

    2 dni temu

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

  15. Kutluhan Bilgeşah Bayzan

    Kutluhan Bilgeşah Bayzan

    2 dni temu

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

  16. Iustinian Motac

    Iustinian Motac

    2 dni temu

    Thank you for existing.

  17. Taufik Nur Rahmanda

    Taufik Nur Rahmanda

    2 dni temu

    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.

  18. TheFamousArthur


    2 dni temu

    Where are CHARM, BOTTOM, and TOP quarks?

  19. Albert25012501


    2 dni temu

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

  20. Cassia Chloe

    Cassia Chloe

    3 dni temu

    this animator must smoke a lot of dmt its beautiful

  21. Bianca Pilichi

    Bianca Pilichi

    3 dni temu

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

  22. mtilford


    3 dni temu

    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.

  23. 윤우성


    3 dni temu


  24. Dan Cooper

    Dan Cooper

    3 dni temu

    I'm not going to worry about it.

  25. Eurus


    3 dni temu

    doctor strange: hOLD MY BEER

  26. P G

    P G

    3 dni temu

    So that is a tiberium.

  27. keith dunham

    keith dunham

    3 dni temu

    really an ad about tat stupid ark in kentucky ??

  28. SCRUMB


    3 dni temu

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

  29. Nathan Stene

    Nathan Stene

    4 dni temu

    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.

  30. XL Gamer

    XL Gamer

    4 dni temu

    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)

  31. Da Drumma

    Da Drumma

    4 dni temu

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

  32. LegendaryDoge


    4 dni temu

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

  33. Adasha Stewart

    Adasha Stewart

    4 dni temu

    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

  34. World Shell

    World Shell

    4 dni temu

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

  35. Depopa


    4 dni temu

    thanks for the anxiety

  36. Fancy Hotdog

    Fancy Hotdog

    4 dni temu

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

  37. Regine Young

    Regine Young

    4 dni temu


  38. Aristides e a Galáxia

    Aristides e a Galáxia

    4 dni temu


  39. Oliveer Mitteer

    Oliveer Mitteer

    4 dni temu

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

  40. MLG Master

    MLG Master

    4 dni temu

    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

  41. MLG Master

    MLG Master

    4 dni temu

    D E N S E

  42. ganymede242


    4 dni temu

    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."

  43. Carolina Montealegre

    Carolina Montealegre

    4 dni temu

    Someone thought about MOONCAKE from Final Space?

  44. Crisselle Heart

    Crisselle Heart

    4 dni temu

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

  45. Rohan Shetty

    Rohan Shetty

    4 dni temu

    Nope, I I still don't get it

  46. 53 ' er

    53 ' er

    4 dni temu

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

  47. 53 ' er

    53 ' er

    4 dni temu

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

  48. Alexandros Huang

    Alexandros Huang

    5 dni temu

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

  49. vegetariansteak


    5 dni temu

    so basically subatomic zombies

  50. Gamma Del Ray

    Gamma Del Ray

    5 dni temu

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

  51. SmilingDude 4325

    SmilingDude 4325

    5 dni temu

    Bends the rules of the universe = SCP.

  52. Pig Ster

    Pig Ster

    5 dni temu

    So strange quark is vibranium

  53. LooneyScouter


    5 dni temu

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

  54. Nick Siegner

    Nick Siegner

    5 dni temu

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

  55. Zack Wright

    Zack Wright

    5 dni temu

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

  56. SevenPheonix329


    5 dni temu

    *wibbily* matter

  57. Steve Chu

    Steve Chu

    5 dni temu

    Strange matter is made from Doctor strange

  58. hike rieger

    hike rieger

    5 dni temu

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

  59. Burhan Sabaz

    Burhan Sabaz

    6 dni temu


  60. KaylaByCandlelight


    6 dni temu

    Can you do a video on an EMP

  61. Jace Baptista-Allan

    Jace Baptista-Allan

    6 dni temu

    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

  62. Alex Ng

    Alex Ng

    6 dni temu

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

  63. Ghost Reportin'

    Ghost Reportin'

    6 dni temu


  64. / CringeLord /

    / CringeLord /

    6 dni temu

    I like how this channel uses birbs

  65. Leo He

    Leo He

    6 dni temu

    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

  66. Arthas The Lich King

    Arthas The Lich King

    6 dni temu

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

  67. Arthas The Lich King

    Arthas The Lich King

    6 dni temu

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

  68. Rubem Parisi

    Rubem Parisi

    6 dni temu

    Im the subscriber number 8.955.515

  69. Drew Johnson

    Drew Johnson

    6 dni temu

    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.

  70. Flame Haze Mithril

    Flame Haze Mithril

    6 dni temu

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

  71. ibrahim Tariq

    ibrahim Tariq

    6 dni temu


  72. ibrahim Tariq

    ibrahim Tariq

    6 dni temu

    amazing videos I subbed and liked THANKS ALOT!!!

  73. FLX Sam

    FLX Sam

    6 dni temu

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

  74. Squishy Spud

    Squishy Spud

    6 dni temu

    Kurz gesagt, wir stecken in der Klemme

  75. Obito Uchiha

    Obito Uchiha

    7 dni temu

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

  76. Blade of Godolo

    Blade of Godolo

    7 dni temu

    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!!✌️

  77. StijntjeHap


    7 dni temu

    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

  78. Arthur morgen

    Arthur morgen

    7 dni temu

    Nah rdr2 is 1000000000000 more times dangerous

  79. LeQuiller


    7 dni temu

    Zombie infection????

  80. Monique Ward

    Monique Ward

    7 dni temu

    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!

  81. Pro SKIMON5

    Pro SKIMON5

    7 dni temu

    1:08 neuciai Edit 1: die

  82. Pro SKIMON5

    Pro SKIMON5

    7 dni temu

    pin me

  83. KSR3


    7 dni temu

    quarks = quacks

  84. Mat E

    Mat E

    7 dni temu

    "In the beginning God"

  85. Gordon B

    Gordon B

    7 dni temu

    Top 3 on PLchannel. Teaching you something in an entertaining way, instead of stupid cat videos and people farting....

  86. Pro Odermonicon

    Pro Odermonicon

    7 dni temu

    Strange matter = exotic matter?

  87. Peanut butter

    Peanut butter

    7 dni temu

    ......thanks kurzgesagt now I have a new fear

  88. zazaplus200 7

    zazaplus200 7

    7 dni temu


  89. Niko


    7 dni temu

    Wow! I can die literally any second!

  90. Sweet and Sour

    Sweet and Sour

    7 dni temu

    All I hear is “quack”.

  91. cody taylor

    cody taylor

    7 dni temu

    I wonder what would happen if a strangelet entered a singularity, or if a gamma ray burst shot through a strange star. Does dark matter convert to strange matter over time as well as regular matter would. What if something was shot through a strange star at the speed of light? Would its matter debilitate fast enough to become strange matter. Would strange matter be affected by a black hole as other matter would since it is the most impenetrable thing in the universe ( well ... other than flex tape at least ). This video gives me a lot of questions about strange stars.

  92. Super Clutch

    Super Clutch

    7 dni temu

    we need a movie about this

  93. Michael Chen

    Michael Chen

    7 dni temu

    These videos scare the shit out of me...

  94. Austin Love

    Austin Love

    7 dni temu

    5:02 plot of The Blob?

    • Austin Love

      Austin Love

      7 dni temu

      535 ryu18-10-

  95. Jaspreet Singh

    Jaspreet Singh

    7 dni temu

  96. Chenzhong Wang

    Chenzhong Wang

    7 dni temu

    4:25 shouldn't the glass turn into strange matter instead of cracking?

    • Sir Angelus

      Sir Angelus

      5 dni temu

      Chenzhong Wang YESS

  97. Kopek Kopkowy

    Kopek Kopkowy

    7 dni temu

    Is strange matter green?

    • Randomness Productions

      Randomness Productions

      7 dni temu


  98. K J

    K J

    7 dni temu

    but will we still be alive after turning into strange matter???

  99. Yeeter The teeter

    Yeeter The teeter

    7 dni temu

    Strange: matter exists Thanos: it’s perfection

  100. Hugh Mungus

    Hugh Mungus

    7 dni temu

    very interesting :o