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 meses atrás

    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

      3 dias atrás


    • Jenny Scott

      Jenny Scott

      4 dias atrás

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

    • Pandasss


      9 dias atrás

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

    • Anthony Umana-Paniagua

      Anthony Umana-Paniagua

      17 dias atrás

      I past the 6th grade 😀

    • conmadben


      28 dias atrás

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

  2. Metin Bogaz

    Metin Bogaz

    4 horas atrás

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

  3. Dvrtagnan crossland

    Dvrtagnan crossland

    4 horas atrás

    I love this muhfuckas voice no homo

  4. Ty Ice Blaze

    Ty Ice Blaze

    5 horas atrás

    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

  5. Scarecrow Studios

    Scarecrow Studios

    11 horas atrás

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

  6. Doppler


    14 horas atrás

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

  7. Satya Panigrahi

    Satya Panigrahi

    16 horas atrás

    Frightening, mesmerizing and absolutely beautiful.😍

  8. Putri putriii

    Putri putriii

    18 horas atrás


  9. Putri putriii

    Putri putriii

    18 horas atrás


  10. Roasted Toast

    Roasted Toast

    Dia atrás

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

  11. Chief Hamhawk

    Chief Hamhawk

    Dia atrás

    “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

  12. Sage Blyth

    Sage Blyth

    Dia atrás

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

  13. SirDoi


    Dia atrás

    Did Dr. Strange make this matter to bend rules?

  14. Shounak Kale

    Shounak Kale

    2 dias atrás

    Very nice video

  15. Charmaine Russell

    Charmaine Russell

    2 dias atrás

    I would like to forget about strangelets....

  16. MrMoticuko


    2 dias atrás

    Stranger Things confirmed

  17. Kelsang Gyudzhin

    Kelsang Gyudzhin

    2 dias atrás

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

  18. Kutluhan Bilgeşah Bayzan

    Kutluhan Bilgeşah Bayzan

    2 dias atrás

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

  19. Iustinian Motac

    Iustinian Motac

    2 dias atrás

    Thank you for existing.

  20. Taufik Nur Rahmanda

    Taufik Nur Rahmanda

    3 dias atrás

    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.

  21. TheFamousArthur


    3 dias atrás

    Where are CHARM, BOTTOM, and TOP quarks?

  22. Albert25012501


    3 dias atrás

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

  23. Cassia Chloe

    Cassia Chloe

    3 dias atrás

    this animator must smoke a lot of dmt its beautiful

  24. Bianca Pilichi

    Bianca Pilichi

    3 dias atrás

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

  25. mtilford


    3 dias atrás

    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.

  26. 윤우성


    3 dias atrás


  27. Dan Cooper

    Dan Cooper

    3 dias atrás

    I'm not going to worry about it.

  28. Eurus


    3 dias atrás

    doctor strange: hOLD MY BEER

  29. P G

    P G

    3 dias atrás

    So that is a tiberium.

  30. keith dunham

    keith dunham

    4 dias atrás

    really an ad about tat stupid ark in kentucky ??

  31. SCRUMB


    4 dias atrás

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

  32. Nathan Stene

    Nathan Stene

    4 dias atrás

    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.

  33. XL Gamer

    XL Gamer

    4 dias atrás

    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)

  34. Da Drumma

    Da Drumma

    4 dias atrás

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

  35. LegendaryDoge


    4 dias atrás

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

  36. Adasha Stewart

    Adasha Stewart

    4 dias atrás

    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

  37. World Shell

    World Shell

    4 dias atrás

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

  38. Depopa


    4 dias atrás

    thanks for the anxiety

  39. Fancy Hotdog

    Fancy Hotdog

    4 dias atrás

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

  40. Regine Young

    Regine Young

    4 dias atrás


  41. Aristides e a Galáxia

    Aristides e a Galáxia

    4 dias atrás


  42. Oliveer Mitteer

    Oliveer Mitteer

    4 dias atrás

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

  43. MLG Master

    MLG Master

    5 dias atrás

    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

  44. MLG Master

    MLG Master

    5 dias atrás

    D E N S E

  45. ganymede242


    5 dias atrás

    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."

  46. Carolina Montealegre

    Carolina Montealegre

    5 dias atrás

    Someone thought about MOONCAKE from Final Space?

  47. Crisselle Heart

    Crisselle Heart

    5 dias atrás

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

  48. Rohan Shetty

    Rohan Shetty

    5 dias atrás

    Nope, I I still don't get it

  49. 53 ' er

    53 ' er

    5 dias atrás

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

  50. 53 ' er

    53 ' er

    5 dias atrás

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

  51. Alexandros Huang

    Alexandros Huang

    5 dias atrás

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

  52. vegetariansteak


    5 dias atrás

    so basically subatomic zombies

  53. Gamma Del Ray

    Gamma Del Ray

    5 dias atrás

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

  54. SmilingDude 4325

    SmilingDude 4325

    5 dias atrás

    Bends the rules of the universe = SCP.

  55. Pig Ster

    Pig Ster

    5 dias atrás

    So strange quark is vibranium

  56. LooneyScouter


    5 dias atrás

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

  57. Nick Siegner

    Nick Siegner

    5 dias atrás

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

  58. Zack Wright

    Zack Wright

    6 dias atrás

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

  59. SevenPheonix329


    6 dias atrás

    *wibbily* matter

  60. Steve Chu

    Steve Chu

    6 dias atrás

    Strange matter is made from Doctor strange

  61. hike rieger

    hike rieger

    6 dias atrás

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

  62. Burhan Sabaz

    Burhan Sabaz

    6 dias atrás


  63. KaylaByCandlelight


    6 dias atrás

    Can you do a video on an EMP

  64. Jace Baptista-Allan

    Jace Baptista-Allan

    6 dias atrás

    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

  65. Alex Ng

    Alex Ng

    6 dias atrás

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

  66. Ghost Reportin'

    Ghost Reportin'

    6 dias atrás


  67. / CringeLord /

    / CringeLord /

    6 dias atrás

    I like how this channel uses birbs

  68. Leo He

    Leo He

    6 dias atrás

    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

  69. Arthas The Lich King

    Arthas The Lich King

    7 dias atrás

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

  70. Arthas The Lich King

    Arthas The Lich King

    7 dias atrás

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

  71. Rubem Parisi

    Rubem Parisi

    7 dias atrás

    Im the subscriber number 8.955.515

  72. Drew Johnson

    Drew Johnson

    7 dias atrás

    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.

  73. Flame Haze Mithril

    Flame Haze Mithril

    7 dias atrás

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

  74. ibrahim Tariq

    ibrahim Tariq

    7 dias atrás


  75. ibrahim Tariq

    ibrahim Tariq

    7 dias atrás

    amazing videos I subbed and liked THANKS ALOT!!!

  76. FLX Sam

    FLX Sam

    7 dias atrás

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

  77. Squishy Spud

    Squishy Spud

    7 dias atrás

    Kurz gesagt, wir stecken in der Klemme

  78. Obito Uchiha

    Obito Uchiha

    7 dias atrás

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

  79. Blade of Godolo

    Blade of Godolo

    7 dias atrás

    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!!✌️

  80. StijntjeHap


    7 dias atrás

    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

  81. Arthur morgen

    Arthur morgen

    7 dias atrás

    Nah rdr2 is 1000000000000 more times dangerous

  82. LeQuiller


    7 dias atrás

    Zombie infection????

  83. Monique Ward

    Monique Ward

    7 dias atrás

    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!

  84. Pro SKIMON5

    Pro SKIMON5

    7 dias atrás

    1:08 neuciai Edit 1: die

  85. Pro SKIMON5

    Pro SKIMON5

    7 dias atrás

    pin me

  86. KSR3


    7 dias atrás

    quarks = quacks

  87. Mat E

    Mat E

    7 dias atrás

    "In the beginning God"

  88. Gordon B

    Gordon B

    7 dias atrás

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

  89. Pro Odermonicon

    Pro Odermonicon

    7 dias atrás

    Strange matter = exotic matter?

  90. Peanut butter

    Peanut butter

    7 dias atrás

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

  91. zazaplus200 7

    zazaplus200 7

    7 dias atrás


  92. Niko


    7 dias atrás

    Wow! I can die literally any second!

  93. Sweet and Sour

    Sweet and Sour

    7 dias atrás

    All I hear is “quack”.

  94. cody taylor

    cody taylor

    8 dias atrás

    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.

  95. Super Clutch

    Super Clutch

    8 dias atrás

    we need a movie about this

  96. Michael Chen

    Michael Chen

    8 dias atrás

    These videos scare the shit out of me...

  97. Austin Love

    Austin Love

    8 dias atrás

    5:02 plot of The Blob?

    • Austin Love

      Austin Love

      8 dias atrás

      535 ryu18-10-

  98. Jaspreet Singh

    Jaspreet Singh

    8 dias atrás

  99. Chenzhong Wang

    Chenzhong Wang

    8 dias atrás

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

    • Sir Angelus

      Sir Angelus

      5 dias atrás

      Chenzhong Wang YESS

  100. Kopek Kopkowy

    Kopek Kopkowy

    8 dias atrás

    Is strange matter green?

    • Randomness Productions

      Randomness Productions

      7 dias atrás


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