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!



  • 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.

    Kurzgesagt – In a NutshellKurzgesagt – In a NutshellIl y a 2 mois
    • K

      cyka neucyka neuIl y a 2 jours
    • Thank you 😊 for your support and your name and the best for your as well as your own personality

      Jenny ScottJenny ScottIl y a 3 jours
    • What happens if it toishes a human? Will it turn us to superheroes 😂 ?

      PandasssPandasssIl y a 9 jours
    • I past the 6th grade 😀

      Anthony Umana-PaniaguaAnthony Umana-PaniaguaIl y a 17 jours
    • Thx guys. I needed my monthly does of existencial crysis...

      conmadbenconmadbenIl y a 28 jours
  • Why does it look like the thing in Ricks portal gun? Coincidence? I think not!

    Metin BogazMetin BogazIl y a 2 heures
  • I love this muhfuckas voice no homo

    Dvrtagnan crosslandDvrtagnan crosslandIl y a 2 heures
  • 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

    Ty Ice BlazeTy Ice BlazeIl y a 2 heures
  • 6:20 Rick, I Think Your portal Gun Is Malfunctioning

    Scarecrow StudiosScarecrow StudiosIl y a 9 heures
  • basically rick and morty, think about the truth behind some thoughts that involve some thinks and research on your own

    DopplerDopplerIl y a 12 heures
  • Frightening, mesmerizing and absolutely beautiful.😍

    Satya PanigrahiSatya PanigrahiIl y a 14 heures
  • 2:00

    Putri putriiiPutri putriiiIl y a 15 heures
  • 2.00

    Putri putriiiPutri putriiiIl y a 15 heures
  • 4:06 thanos:as everything should be...

    Roasted ToastRoasted ToastIl y a jour
  • “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

    Chief HamhawkChief HamhawkIl y a jour
  • 2:19 That's the cutest thing I've seen today

    Sage BlythSage BlythIl y a jour
  • Did Dr. Strange make this matter to bend rules?

    SirDoiSirDoiIl y a jour
  • Very nice video

    Shounak KaleShounak KaleIl y a 2 jours
  • I would like to forget about strangelets....

    Charmaine RussellCharmaine RussellIl y a 2 jours
  • Stranger Things confirmed

    MrMoticukoMrMoticukoIl y a 2 jours
  • 2:31 Oh god their little faces I love them I just can't even XD

    Kelsang GyudzhinKelsang GyudzhinIl y a 2 jours
  • What if humans use strangelets for weapon world and galaxy is be die.

    Kutluhan Bilgeşah BayzanKutluhan Bilgeşah BayzanIl y a 2 jours
  • Thank you for existing.

    Iustinian MotacIustinian MotacIl y a 2 jours
  • 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.

    Taufik Nur RahmandaTaufik Nur RahmandaIl y a 3 jours
  • Where are CHARM, BOTTOM, and TOP quarks?

    TheFamousArthurTheFamousArthurIl y a 3 jours
  • So....that would be a really bad idea to forge THAT hammer for Thor.....

    Albert25012501Albert25012501Il y a 3 jours
  • this animator must smoke a lot of dmt its beautiful

    Cassia ChloeCassia ChloeIl y a 3 jours
  • Kurzgesagt's videos always give me a slight, ancestral anxiety

    Bianca PilichiBianca PilichiIl y a 3 jours
  • 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.

    mtilfordmtilfordIl y a 3 jours
  • !

    윤우성윤우성Il y a 3 jours
  • I'm not going to worry about it.

    Dan CooperDan CooperIl y a 3 jours
  • doctor strange: hOLD MY BEER

    EurusEurusIl y a 3 jours
  • So that is a tiberium.

    P GP GIl y a 3 jours
  • really an ad about tat stupid ark in kentucky ??

    keith dunhamkeith dunhamIl y a 4 jours
  • Strange matter: *Exist* Dr strange: Strange up boi!

    SCRUMBSCRUMBIl y a 4 jours
  • 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.

    Nathan SteneNathan SteneIl y a 4 jours
  • 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)

    XL GamerXL GamerIl y a 4 jours
  • Maybe strange matter is the ultimate form of existence and we're fools to resist assimilation.

    Da DrummaDa DrummaIl y a 4 jours
  • How to make this video 2 second long Strange Matter is Strange

    LegendaryDogeLegendaryDogeIl y a 4 jours
  • 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

    Adasha StewartAdasha StewartIl y a 4 jours
  • Who knows this strange stuff can be used as unlimited power source that could disobey thermodynamic laws

    World ShellWorld ShellIl y a 4 jours
  • thanks for the anxiety

    DepopaDepopaIl y a 4 jours
  • Kurzgesagt: Perfectly dense, perfectly stable, indestructible. My brain: *Perfectly balanced, as all things should be*

    Fancy HotdogFancy HotdogIl y a 4 jours
  • Quack

    Regine YoungRegine YoungIl y a 4 jours

    Aristides e a GaláxiaAristides e a GaláxiaIl y a 4 jours
  • Warum ist da ein Fidget Spinner im Thumbnail ? English: Why is there a Fidget Spinner in the Thumbnail ?

    Oliveer MitteerOliveer MitteerIl y a 4 jours
  • 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

    MLG MasterMLG MasterIl y a 4 jours
  • D E N S E

    MLG MasterMLG MasterIl y a 4 jours
  • 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."

    ganymede242ganymede242Il y a 5 jours
  • Someone thought about MOONCAKE from Final Space?

    Carolina MontealegreCarolina MontealegreIl y a 5 jours
  • supernova to neutron star to quark matter to quark star to strange quark to strange matter to strangelets

    Crisselle HeartCrisselle HeartIl y a 5 jours
  • Nope, I I still don't get it

    Rohan ShettyRohan ShettyIl y a 5 jours
  • I thought matter means something different like "it doesnt matter" or is it used as well for Material

    53 ' er53 ' erIl y a 5 jours
  • Is this "strange thing" thing proven or do they just asume that

    53 ' er53 ' erIl y a 5 jours
  • Wait a second wouldn’t the strange matter infect the neutron star

    Alexandros HuangAlexandros HuangIl y a 5 jours
  • so basically subatomic zombies

    vegetariansteakvegetariansteakIl y a 5 jours
  • Being infectiously converted into some strange nuclear matter by a small droplet of neutron star core sounds kind of romantic in my eyes.

    Gamma Del RayGamma Del RayIl y a 5 jours
  • Bends the rules of the universe = SCP.

    SmilingDude 4325SmilingDude 4325Il y a 5 jours
  • So strange quark is vibranium

    Pig SterPig SterIl y a 5 jours
  • Is this just based on guessing? XD Can't imagine humans to understand something so complex and unknown.

    LooneyScouterLooneyScouterIl y a 5 jours
  • I love how the whole commentsection is just memes about strange matter

    Nick SiegnerNick SiegnerIl y a 5 jours
  • So its like a sickness that could spread through out the Multiverse and destroy everything it touches....great

    Zack WrightZack WrightIl y a 5 jours
  • *wibbily* matter

    SevenPheonix329SevenPheonix329Il y a 5 jours
  • Strange matter is made from Doctor strange

    Steve ChuSteve ChuIl y a 5 jours
  • Time to play with strange matter *Drops someone: you doomed us all

    hike riegerhike riegerIl y a 6 jours

    Burhan SabazBurhan SabazIl y a 6 jours
  • Can you do a video on an EMP

    KaylaByCandlelightKaylaByCandlelightIl y a 6 jours
  • 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

    Jace Baptista-AllanJace Baptista-AllanIl y a 6 jours
  • Denses material in the universe ( from weakest to strongest) Our Sun Neutron star Black hole Nokia3310

    Alex NgAlex NgIl y a 6 jours
  • Ice-9

    Ghost Reportin'Ghost Reportin'Il y a 6 jours
  • I like how this channel uses birbs

    / CringeLord // CringeLord /Il y a 6 jours
  • 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

    Leo HeLeo HeIl y a 6 jours
  • Plot twist:we are all already made of strange matter and we just don't know it

    Arthas The Lich KingArthas The Lich KingIl y a 6 jours
  • Plot twist:we are all already made of strange matter and we just don't know it

    Arthas The Lich KingArthas The Lich KingIl y a 6 jours
  • Im the subscriber number 8.955.515

    Rubem ParisiRubem ParisiIl y a 7 jours
  • 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.

    Drew JohnsonDrew JohnsonIl y a 7 jours
  • Hmm, I just got an idea for a new missile warhead. Thanks Kurgezagt 😂

    Flame Haze MithrilFlame Haze MithrilIl y a 7 jours
  • GOOD!

    ibrahim Tariqibrahim TariqIl y a 7 jours
  • amazing videos I subbed and liked THANKS ALOT!!!

    ibrahim Tariqibrahim TariqIl y a 7 jours
  • Wow humans are definitely not ready to face that sort of problem

    FLX SamFLX SamIl y a 7 jours
  • Kurz gesagt, wir stecken in der Klemme

    Squishy SpudSquishy SpudIl y a 7 jours
  • I am more afraid watching Kurzgesagt videos compared to watching horror movies.

    Obito UchihaObito UchihaIl y a 7 jours
  • 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!!✌️

    Blade of GodoloBlade of GodoloIl y a 7 jours
  • 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

    StijntjeHapStijntjeHapIl y a 7 jours
  • Nah rdr2 is 1000000000000 more times dangerous

    Arthur morgenArthur morgenIl y a 7 jours
  • Zombie infection????

    LeQuillerLeQuillerIl y a 7 jours
  • 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!

    Monique WardMonique WardIl y a 7 jours
  • 1:08 neuciai Edit 1: die

    Pro SKIMON5Pro SKIMON5Il y a 7 jours
  • pin me

    Pro SKIMON5Pro SKIMON5Il y a 7 jours
  • quarks = quacks

    KSR3KSR3Il y a 7 jours
  • "In the beginning God"

    Mat EMat EIl y a 7 jours
  • Top 3 on FR-vision. Teaching you something in an entertaining way, instead of stupid cat videos and people farting....

    Gordon BGordon BIl y a 7 jours
  • Strange matter = exotic matter?

    Pro OdermoniconPro OdermoniconIl y a 7 jours
  • ......thanks kurzgesagt now I have a new fear

    Peanut butterPeanut butterIl y a 7 jours
  • Bonjour

    zazaplus200 7zazaplus200 7Il y a 7 jours
  • Wow! I can die literally any second!

    NikoNikoIl y a 7 jours
  • All I hear is “quack”.

    Sweet and SourSweet and SourIl y a 7 jours
  • 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.

    cody taylorcody taylorIl y a 7 jours
  • we need a movie about this

    Super ClutchSuper ClutchIl y a 7 jours
  • These videos scare the shit out of me...

    Michael ChenMichael ChenIl y a 7 jours
  • 5:02 plot of The Blob?

    Austin LoveAustin LoveIl y a 7 jours
    • 535 ryu18-10-

      Austin LoveAustin LoveIl y a 7 jours
  • Jaspreet SinghJaspreet SinghIl y a 8 jours
  • 4:25 shouldn't the glass turn into strange matter instead of cracking?

    Chenzhong WangChenzhong WangIl y a 8 jours
    • Chenzhong Wang YESS

      Sir AngelusSir AngelusIl y a 5 jours
  • Is strange matter green?

    Kopek KopkowyKopek KopkowyIl y a 8 jours
    • maybe

      Randomness ProductionsRandomness ProductionsIl y a 7 jours
The Most Dangerous Stuff in the Universe - Strange Stars Explained