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 Nutshell2 หลายเดือนก่อน
    • 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 ^^

      Felix ReußFelix Reuß9 วันที่ผ่านมา
    • K

      cyka neucyka neu12 วันที่ผ่านมา
    • Thank you 😊 for your support and your name and the best for your as well as your own personality

      Jenny ScottJenny Scott13 วันที่ผ่านมา
    • What happens if it toishes a human? Will it turn us to superheroes 😂 ?

      PandasssPandasss18 วันที่ผ่านมา
    • I past the 6th grade 😀

      Anthony Umana-PaniaguaAnthony Umana-Paniagua27 วันที่ผ่านมา
  • 4:06 one might even say... perfectly balanced. As all things should be.

    Peter LanePeter Laneชั่วโมงที่ผ่านมา
  • Cube: Wait... If I was corrupted into pink corruption? Cube(again): When... Am I corrupted into strange corruption? Cyan: That's a crazy bizzare.

    Neonmail ExpertNeonmail Expert8 ชั่วโมงที่ผ่านมา
  • Why strange quark MUST to transform any thing? If it was in grand tube.

    Agust PendragonAgust Pendragon15 ชั่วโมงที่ผ่านมา
  • ITS NERd TIMe Okay heres a theory, if matter is made of up and down quarks, and the strange matter is made of strange quarks, what if there are other types of matter made of the other types of quarks? Like top matter, or bottom matter or charm matter? What if dark and exotic matter may be made of those other quarks? Like exotic matter be made of charm quarks and dark matter is made of top and bottom quarks?

    Mystic The MythicMystic The Mythic20 ชั่วโมงที่ผ่านมา
  • before the world kills me I kill myself

  • That how will throw trash in future convert to trash

    Luigi CotoceaLuigi Cotoceaวันที่ผ่านมา
  • Can u plss make video on general relativity

    Gouri Pal SarkarGouri Pal Sarkarวันที่ผ่านมา
  • What if we are the strange matter conciously unconciously?

    Christian DaniacChristian Daniacวันที่ผ่านมา
  • @kurzgesagt> info graphics

    Tyrique DanielTyrique Danielวันที่ผ่านมา
  • How ... Biblical. And the name of the star is called Wormwood: and the third part of the waters became wormwood; and many men died of the waters, because they were made bitter. Revelations 8:11 so that's how it's going to end... How interesting my Bible predicted this before scientists.

    cgwworldministriescgwworldministries2 วันที่ผ่านมา
  • The only universe that exists is the firmament of the flat earth and the luminary AKA? star. 🌟 😳💭

    flat worldflat world2 วันที่ผ่านมา
  • Theoretical physics wew

    Ben MitchellBen Mitchell2 วันที่ผ่านมา
  • Wouldn't the black hole turn into a strange black hole?

    Random GuyRandom Guy2 วันที่ผ่านมา
  • wow this guy actually seems inteligent. its to bad he believes in carbon dating. carbon date a man made diamond for me. oh it depends on the environment? yeah so you have no clue. 50 gjillion years ago studies have shown lmao. his fallacy lies in trusting other men's word.

    Greg WarrenerGreg Warrener2 วันที่ผ่านมา
  • How to switch to german language ?

    hirschlordhirschlord2 วันที่ผ่านมา
  • 0:50 "but we'll provide you with further reading" judging from the huge piles in the video, no thanks. *After watching the video* Y'know, I think I'll take that reading

    SupercraftDSupercraftD2 วันที่ผ่านมา
  • *Очень интересно! Спасибо!*

    ГЕОСФЕРАГЕОСФЕРА2 วันที่ผ่านมา

    Geetha GeethaGeetha Geetha2 วันที่ผ่านมา
  • Why do I always go away with another worry in my life every time I’m on this channel

    Randy VinesRandy Vines2 วันที่ผ่านมา
  • Looks like they couldn’t handle the neutron style

    Crazyface18Crazyface183 วันที่ผ่านมา
  • gibts das auch auf deutsch?

    Eddie PooleEddie Poole3 วันที่ผ่านมา
  • nicht auf deutsch....dislike

    NicolomeusNicolomeus3 วันที่ผ่านมา
  • Observation pretty much disproves all of this bullshit.

    Michael BishopMichael Bishop3 วันที่ผ่านมา
  • if we manage to solidify it , we will probably get infinity stones

    Lavi HayounLavi Hayoun3 วันที่ผ่านมา
  • Wierdmageddon?

    Benjamin SeidlitzBenjamin Seidlitz3 วันที่ผ่านมา
  • German title, German channel name but English content?

    kirdiekirdiekirdiekirdie3 วันที่ผ่านมา
    • The original title is english TH-vision just translated it in your prefered language

      WaeWaeWaeWae3 วันที่ผ่านมา
  • This is so cool it’s almost like homeschool it’s so much fun

    Ali KazmiAli Kazmi3 วันที่ผ่านมา
  • Stranger Things Season 3 buu bu buu bu bu bu buh buh

    Logical DarkLogical Dark3 วันที่ผ่านมา
  • Strange bean

    qwerty uiopqwerty uiop3 วันที่ผ่านมา
  • Don't we need strange matter to make an Alcubierre drive? We gotta get some and make it work, because to colonise the universe we gotta go super-luminal

    00rphb00rphb4 วันที่ผ่านมา
    • @Philipp Ramolla well I know it have a negative mass, which is really cool, I could use some of that myself. But as for this "exotic matter" he talked about, I am not convinced it exist, as most of the things on this sight it is highly speculative. In general I don't believe in anything I can't see or deduce from reason and dark matter, just like dark energy are simply ad-hoc variables added to our equations in order for them to make sense. Ad hoc solutions are dubious at best. A better theory would be one who can explain gravity without resorting to unobservable constructs such as dark matter. Once we get that theory we can basically throw everything we currently know about the universe out with the garbage. But for now, the all important mission is that we adhere to the principle of anthropocentrism. Humans are the only thing that matter, and every effort we make should be towards the betterment of mankind. What can we use this speculative nonsense on? Fusion power would be great, really great, but if it is not useful (for mankind) it is not important. That is a razor more important than both Occam's and Newtons flaming laser sword.

      00rphb00rphb3 วันที่ผ่านมา
    • I think its exotic matter which is needed for that drive

      Philipp RamollaPhilipp Ramolla3 วันที่ผ่านมา
  • I would like to get australium professional killstreak strange star.

    Reaper!Sans a.k.a. God of DeathReaper!Sans a.k.a. God of Death4 วันที่ผ่านมา
  • Contact Christopher Nolan i found him a movie script to make

    A-star puriA-star puri4 วันที่ผ่านมา
  • -maze bean- *death bean*

    Gotato PamingGotato Paming4 วันที่ผ่านมา
  • Kurzgesagt is basically Optical [GD] in disguise.

    Nexus JamesNexus James4 วันที่ผ่านมา
  • If strange matter converted everything it touches wouldn't it just convert the whole neutron start into strange matter? It could happen slowly.

    E SyoneE Syone4 วันที่ผ่านมา
  • Better to have stars become black holes rather than neutron stars that can collide with other stars that could spread strange space fungus across the galaxy.

    Demonic AxemanDemonic Axeman5 วันที่ผ่านมา
  • 1:20 Me with my class

    Bronza BronzovichBronza Bronzovich5 วันที่ผ่านมา
  • The difference between a strange quark and a down quark is strange quarks have a little less Than double the mass of a down quark, so why dont Up quarks become charm quarks like down quarks become strange quarks

    Jose BERGERJose BERGER5 วันที่ผ่านมา
  • A thing that teaches us and kill us at the same time? Sounds like when gunpowder were first invented.

    Jackie GunterJackie Gunter5 วันที่ผ่านมา
    • At 4:02 , as all things should be.

      Jackie GunterJackie Gunter5 วันที่ผ่านมา
  • It's a bit funny that people get paid to speculate on space like that lol like its never happened and probably wont happen. Money please 🤑

    kez_ hkez_ h5 วันที่ผ่านมา
  • That's it. In college I'm going to get a double PhD in quantum physics

    Anthony ValdiviesoAnthony Valdivieso6 วันที่ผ่านมา
  • Why are the english subtitles so fancy?

    jokitalinda10jokitalinda106 วันที่ผ่านมา
  • So what youre saying is... Dormammu is real?

    Vincent CruzVincent Cruz6 วันที่ผ่านมา
  • Matter , strange matter,dark matter ,exotic matter,anti matter and now quark matter

    Mr RamsMr Rams6 วันที่ผ่านมา
  • 4:05 *Perfectly balanced - as all things should be.*

    beata uryszekbeata uryszek6 วันที่ผ่านมา
  • Why anti matters cant destroy strange quarks?

    Aileen lanipAileen lanip6 วันที่ผ่านมา
  • Can u do a video about how to pronounce your name

    Collsal CranksCollsal Cranks7 วันที่ผ่านมา
  • 4:18 Sounds like a Sci-Fi movie.

    Marshmello king 101Marshmello king 1017 วันที่ผ่านมา
  • 1:56 Qua

    Евгений ЭдельманЕвгений Эдельман7 วันที่ผ่านมา
  • Yeah,It's cool..... Or not,I cannot even understand one sentence......

    Jim GuJim Gu7 วันที่ผ่านมา
  • Esté canal es oro 🔥🔥

    루이스루이스7 วันที่ผ่านมา
  • 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.

    LeTtRrZLeTtRrZ7 วันที่ผ่านมา
  • nothing is beyond my imagination even reality its self

    Sr GSr G8 วันที่ผ่านมา
  • Is this guy actually a scientist or just reading this of wiki?

    CUTE KAYLACUTE KAYLA8 วันที่ผ่านมา
  • Great. Now we have a sub-nuclear plague.

    OMEGABETOMEGABET8 วันที่ผ่านมา
  • 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?

    GamingInside 1GamingInside 18 วันที่ผ่านมา
  • So I will just shot it at planet and destroy it... Ideal weapon created

    nono8 วันที่ผ่านมา
  • Why does it look like the thing in Ricks portal gun? Coincidence? I think not!

    Metin BogazMetin Bogaz9 วันที่ผ่านมา
  • I love this muhfuckas voice no homo

    Dvrtagnan crosslandDvrtagnan crossland9 วันที่ผ่านมา
  • 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 Blaze9 วันที่ผ่านมา
  • 6:20 Rick, I Think Your portal Gun Is Malfunctioning

    Scarecrow StudiosScarecrow Studios9 วันที่ผ่านมา
  • basically rick and morty, think about the truth behind some thoughts that involve some thinks and research on your own

    DopplerDoppler9 วันที่ผ่านมา
  • Frightening, mesmerizing and absolutely beautiful.😍

    Satya PanigrahiSatya Panigrahi10 วันที่ผ่านมา
  • 2:00

    Putri putriiiPutri putriii10 วันที่ผ่านมา
  • 2.00

    Putri putriiiPutri putriii10 วันที่ผ่านมา
  • 4:06 thanos:as everything should be...

    Roasted ToastRoasted Toast10 วันที่ผ่านมา
  • “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 Hamhawk10 วันที่ผ่านมา
  • 2:19 That's the cutest thing I've seen today

    Sage BlythSage Blyth11 วันที่ผ่านมา
  • Did Dr. Strange make this matter to bend rules?

    SirDoiSirDoi11 วันที่ผ่านมา
  • Very nice video

    Shounak KaleShounak Kale11 วันที่ผ่านมา
  • I would like to forget about strangelets....

    Charmaine RussellCharmaine Russell11 วันที่ผ่านมา
  • Stranger Things confirmed

    MrMoticukoMrMoticuko12 วันที่ผ่านมา
  • 2:31 Oh god their little faces I love them I just can't even XD

    Kelsang GyudzhinKelsang Gyudzhin12 วันที่ผ่านมา
  • What if humans use strangelets for weapon world and galaxy is be die.

    Kutluhan Bilgeşah BayzanKutluhan Bilgeşah Bayzan12 วันที่ผ่านมา
  • Thank you for existing.

    Iustinian MotacIustinian Motac12 วันที่ผ่านมา
  • 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 Rahmanda12 วันที่ผ่านมา
  • Where are CHARM, BOTTOM, and TOP quarks?

    TheFamousArthurTheFamousArthur12 วันที่ผ่านมา
  • So....that would be a really bad idea to forge THAT hammer for Thor.....

    Albert25012501Albert2501250112 วันที่ผ่านมา
  • this animator must smoke a lot of dmt its beautiful

    Cassia ChloeCassia Chloe12 วันที่ผ่านมา
  • Kurzgesagt's videos always give me a slight, ancestral anxiety

    Bianca PilichiBianca Pilichi12 วันที่ผ่านมา
    • you fucking pussy!!!!

      syndicatorsyndicator10 ชั่วโมงที่ผ่านมา
  • 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.

    mtilfordmtilford12 วันที่ผ่านมา
  • !

    윤우성윤우성12 วันที่ผ่านมา
  • I'm not going to worry about it.

    Dan CooperDan Cooper13 วันที่ผ่านมา
  • doctor strange: hOLD MY BEER

    EurusEurus13 วันที่ผ่านมา
  • So that is a tiberium.

    P GP G13 วันที่ผ่านมา
  • really an ad about tat stupid ark in kentucky ??

    keith dunhamkeith dunham13 วันที่ผ่านมา
  • Strange matter: *Exist* Dr strange: Strange up boi!

    SCRUMBSCRUMB13 วันที่ผ่านมา
  • 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 Stene13 วันที่ผ่านมา
  • 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 Gamer13 วันที่ผ่านมา
  • Maybe strange matter is the ultimate form of existence and we're fools to resist assimilation.

    Da DrummaDa Drumma13 วันที่ผ่านมา
  • How to make this video 2 second long Strange Matter is Strange

    LegendaryDogeLegendaryDoge14 วันที่ผ่านมา
  • 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 Stewart14 วันที่ผ่านมา
  • Who knows this strange stuff can be used as unlimited power source that could disobey thermodynamic laws

    World ShellWorld Shell14 วันที่ผ่านมา
  • thanks for the anxiety

    DepopaDepopa14 วันที่ผ่านมา
  • Kurzgesagt: Perfectly dense, perfectly stable, indestructible. My brain: *Perfectly balanced, as all things should be*

    Fancy HotdogFancy Hotdog14 วันที่ผ่านมา
  • Quack

    Regine YoungRegine Young14 วันที่ผ่านมา

    Aristides e a GaláxiaAristides e a Galáxia14 วันที่ผ่านมา
  • Warum ist da ein Fidget Spinner im Thumbnail ? English: Why is there a Fidget Spinner in the Thumbnail ?

    Boy !!Boy !!14 วันที่ผ่านมา
  • 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 Master14 วันที่ผ่านมา
The Most Dangerous Stuff in the Universe - Strange Stars Explained