The Most Dangerous Stuff in the Universe - Strange Stars Explained
Kurzgesagt – In a Nutshell
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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!

  • Kurzgesagt – In a Nutshell
    Kurzgesagt – In a Nutshell

    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

      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


    • Jenny Scott
      Jenny Scott

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

    • Pandasss

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

    • Anthony Umana-Paniagua
      Anthony Umana-Paniagua

      I past the 6th grade 😀

  • ruwiki

    before the world kills me I kill myself

  • Luigi Cotocea
    Luigi Cotocea

    That how will throw trash in future convert to trash

  • Gouri Pal Sarkar
    Gouri Pal Sarkar

    Can u plss make video on general relativity

  • Christian Daniac
    Christian Daniac

    What if we are the strange matter conciously unconciously?

  • Tyrique Daniel
    Tyrique Daniel

    @kurzgesagt> info graphics

  • cgwworldministries

    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.

  • flat world
    flat world

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

  • Ben Mitchell
    Ben Mitchell

    Theoretical physics wew

  • Random Guy
    Random Guy

    Wouldn't the black hole turn into a strange black hole?

  • Greg Warrener
    Greg Warrener

    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.

  • hirschlord

    How to switch to german language ?

  • SupercraftD

    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


    *Очень интересно! Спасибо!*

  • Geetha Geetha
    Geetha Geetha


  • Randy Vines
    Randy Vines

    Why do I always go away with another worry in my life every time I’m on this channel

  • Crazyface18

    Looks like they couldn’t handle the neutron style

  • Eddie Poole
    Eddie Poole

    gibts das auch auf deutsch?

  • Nicolomeus

    nicht auf deutsch....dislike

  • Michael Bishop
    Michael Bishop

    Observation pretty much disproves all of this bullshit.

  • Lavi Hayoun
    Lavi Hayoun

    if we manage to solidify it , we will probably get infinity stones

  • Benjamin Seidlitz
    Benjamin Seidlitz


  • kirdiekirdie

    German title, German channel name but English content?

    • WaeWae

      The original title is english KR-my just translated it in your prefered language

  • Ali Kazmi
    Ali Kazmi

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

  • Logical Dark
    Logical Dark

    Stranger Things Season 3 buu bu buu bu bu bu buh buh

  • qwerty uiop
    qwerty uiop

    Strange bean

  • 00rphb

    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

    • 00rphb

      @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.

    • Philipp Ramolla
      Philipp Ramolla

      I think its exotic matter which is needed for that drive

  • Reaper!Sans a.k.a. God of Death
    Reaper!Sans a.k.a. God of Death

    I would like to get australium professional killstreak strange star.

  • A-star puri
    A-star puri

    Contact Christopher Nolan i found him a movie script to make

  • Gotato Paming
    Gotato Paming

    -maze bean- *death bean*

  • Nexus James
    Nexus James

    Kurzgesagt is basically Optical [GD] in disguise.

  • E Syone
    E Syone

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

  • Demonic Axeman
    Demonic Axeman

    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.

  • Bronza Bronzovich
    Bronza Bronzovich

    1:20 Me with my class

  • Sarai Rodriquez
    Sarai Rodriquez

    Thanos:I killed half the universe Strange matter: hold my beer

  • Jose BERGER
    Jose BERGER

    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

  • Jackie Gunter
    Jackie Gunter

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

    • Jackie Gunter
      Jackie Gunter

      At 4:02 , as all things should be.

  • kez_ h
    kez_ h

    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 🤑

  • Anthony Valdivieso
    Anthony Valdivieso

    That's it. In college I'm going to get a double PhD in quantum physics

  • jokitalinda10

    Why are the english subtitles so fancy?

  • Vincent Cruz
    Vincent Cruz

    So what youre saying is... Dormammu is real?

  • Mr Rams
    Mr Rams

    Matter , strange matter,dark matter ,exotic matter,anti matter and now quark matter

  • beata uryszek
    beata uryszek

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

  • Aileen lanip
    Aileen lanip

    Why anti matters cant destroy strange quarks?

  • Collsal Cranks
    Collsal Cranks

    Can u do a video about how to pronounce your name

  • Marshmello king 101
    Marshmello king 101

    4:18 Sounds like a Sci-Fi movie.

  • Евгений Эдельман
    Евгений Эдельман

    1:56 Qua

  • Jim Gu
    Jim Gu

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

  • 루이스

    Esté canal es oro 🔥🔥

  • LeTtRrZ

    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.

  • Sr G
    Sr G

    nothing is beyond my imagination even reality its self


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


    Great. Now we have a sub-nuclear plague.

  • GamingInside 1
    GamingInside 1

    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?

  • no

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

  • Metin Bogaz
    Metin Bogaz

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

  • Dvrtagnan crossland
    Dvrtagnan crossland

    I love this muhfuckas voice no homo

  • Ty Ice Blaze
    Ty Ice Blaze

    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

  • Scarecrow Studios
    Scarecrow Studios

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

  • Doppler

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

  • Satya Panigrahi
    Satya Panigrahi

    Frightening, mesmerizing and absolutely beautiful.😍

  • Putri putriii
    Putri putriii


  • Putri putriii
    Putri putriii


  • Roasted Toast
    Roasted Toast

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

  • Chief Hamhawk
    Chief Hamhawk

    “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

  • Sage Blyth
    Sage Blyth

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

  • SirDoi

    Did Dr. Strange make this matter to bend rules?

  • Shounak Kale
    Shounak Kale

    Very nice video

  • Charmaine Russell
    Charmaine Russell

    I would like to forget about strangelets....

  • MrMoticuko

    Stranger Things confirmed

  • Kelsang Gyudzhin
    Kelsang Gyudzhin

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

  • Kutluhan Bilgeşah Bayzan
    Kutluhan Bilgeşah Bayzan

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

  • Iustinian Motac
    Iustinian Motac

    Thank you for existing.

  • Taufik Nur Rahmanda
    Taufik Nur Rahmanda

    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.

  • TheFamousArthur

    Where are CHARM, BOTTOM, and TOP quarks?

  • Albert25012501

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

  • Cassia Chloe
    Cassia Chloe

    this animator must smoke a lot of dmt its beautiful

  • Bianca Pilichi
    Bianca Pilichi

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

  • mtilford

    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.

  • 윤우성


  • Dan Cooper
    Dan Cooper

    I'm not going to worry about it.

  • Eurus

    doctor strange: hOLD MY BEER

  • P G
    P G

    So that is a tiberium.

  • keith dunham
    keith dunham

    really an ad about tat stupid ark in kentucky ??


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

  • Nathan Stene
    Nathan Stene

    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.

  • XL Gamer
    XL Gamer

    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)

  • Da Drumma
    Da Drumma

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

  • LegendaryDoge

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

  • Adasha Stewart
    Adasha Stewart

    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

  • World Shell
    World Shell

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

  • Depopa

    thanks for the anxiety

  • Fancy Hotdog
    Fancy Hotdog

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

  • Regine Young
    Regine Young


  • Aristides e a Galáxia
    Aristides e a Galáxia


  • Oliveer Mitteer
    Oliveer Mitteer

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

  • MLG Master
    MLG Master

    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 Master
    MLG Master

    D E N S E

  • ganymede242

    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."

  • Carolina Montealegre
    Carolina Montealegre

    Someone thought about MOONCAKE from Final Space?

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