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 Nutshell10 หลายเดือนก่อน
    • I like the birds tho. They make everything look kinda cute xd

      StefanStefan3 วันที่ผ่านมา
    • Kurzgesagt - In a Nutshell Listen... I realize this is 9 months old so you probably won't see this comment. But 7:04 is literally the DUMBEST THING POSSIBLE. If a single fucking molecule of a Strange mater can essentially destroy an entire planet. Why the fuck would you have that on Earth? Even if it was in a container? All some terrorist or psychopath has do is blow it up and we are all screwed.

      MakasMakas7 วันที่ผ่านมา
    • Ok

      Thunder_Sven 72Thunder_Sven 72หลายเดือนก่อน
    • *black hole eats sun literally every band ever* black hole sun-

      Rachel BoyerRachel Boyerหลายเดือนก่อน
    • Why does the star not turn in to strange mater entirely.

      Nicholas KirklandNicholas Kirklandหลายเดือนก่อน
  • Strange quarks might be infectious. Plague inc. customer creators:

    webwebb_webwebb_3 ชั่วโมงที่ผ่านมา
  • My duck is watching this with me, I’m 10

    Alexander EdwardsAlexander Edwards3 ชั่วโมงที่ผ่านมา
  • Get the red matter.

    Calen CrawfordCalen Crawford4 ชั่วโมงที่ผ่านมา
  • Dragon balls

    VehicleVehicle5 ชั่วโมงที่ผ่านมา
  • If they are already here in my screen, why is my device not being converted to Strange quarks?

    A Random GuyA Random Guy5 ชั่วโมงที่ผ่านมา
  • What's gravity?

    Tactical trollTactical troll6 ชั่วโมงที่ผ่านมา
  • Strange quarks are just crack head quarks

    Dread MaelstromDread Maelstrom11 ชั่วโมงที่ผ่านมา
  • Strange matter: **falls into Earth** Me: REVERSE UNO CARD

    QwertyQwerty13 ชั่วโมงที่ผ่านมา
  • I came here after the 1200 hour video. I only just realised the level of labour needed to complete this tedious task, yet the team completed the video with high quality.

    I Am The CarrotI Am The Carrot20 ชั่วโมงที่ผ่านมา
  • I thought of the green stars in super Mario galaxy 2^^

  • In quantum immortality, earth is immortal.

  • Strangelets: **exists** Also Strangelets: *waNnA bE pARt oF MY rELigiOn?*

    Hello ThereHello Thereวันที่ผ่านมา
  • May be or may be not......thats all about these shits

    Aniket DasAniket Dasวันที่ผ่านมา
  • Am I the only one that thought of Kurt Vonnegut and ice-nine?

    Kevin WangKevin Wangวันที่ผ่านมา
  • What a way to tell audience a sponsor....

    kharus bellkharus bellวันที่ผ่านมา
  • 1:03 kurzgesagt uses ZA HANDO to cause a supernova

  • Would an anti-strangelet (made of anti-strange matter, made of anti-strange quarks) annihilate Strangelets? Like normal matter does anti-matter

    Da-Dragon PlaysDa-Dragon Playsวันที่ผ่านมา
  • This is what the Joker meant when he said “What doesn’t kill you only makes you... Stranger”

    Joshua CunninghamJoshua Cunninghamวันที่ผ่านมา
  • That was legitimately terrifying.

    Denzel GondweDenzel Gondweวันที่ผ่านมา
  • What happens if a stranglet is more stable than a black hole.... and creates a GREEN HOLE

    Kerbal madness GamingKerbal madness Gamingวันที่ผ่านมา
  • Kurzgesagt: strange quark Me: Green lantern power

    Cao Vinh HoàngCao Vinh Hoàngวันที่ผ่านมา
  • I appreciate this video even more after knowing how you guys made them

    Dominant Shark SquadDominant Shark Squad2 วันที่ผ่านมา
  • come strange matter converts noral matter into strange matter but still lays inside neutron star without converthing it whole? Unless neutron star matter is not normal enought to be converted...:S

    Krunoslav ŠokićKrunoslav Šokić2 วันที่ผ่านมา
  • Bruh; this means The Color Out Of Space could actually happen.

    Panicking StrumpetPanicking Strumpet2 วันที่ผ่านมา
  • Does anyone watch the english and the german videos? I'm from germany but since I take bilingual lessons, I figured I could just watch the english videos as well. Okay nobody asked..

    trashxalex ಠ_ಠtrashxalex ಠ_ಠ2 วันที่ผ่านมา
  • Hmm Westwood Studios somehow knew about this strange matter in 1995...

    We Deserve BetterWe Deserve Better2 วันที่ผ่านมา
  • But what are quarks made of?

    The person Over thereThe person Over there2 วันที่ผ่านมา

    Sumona ZinatSumona Zinat2 วันที่ผ่านมา
  • The Big Bang was probably caused by god dropping his croissant.

    AllMightyTrayTable GamingAllMightyTrayTable Gaming3 วันที่ผ่านมา
  • Why is this channel named in german but is an english channel?

    Pawel Jakub KneblochPawel Jakub Knebloch3 วันที่ผ่านมา
  • Wait it wouldn’t be any larger... THAN A ROCKET?!

    Duncan DonutsDuncan Donuts3 วันที่ผ่านมา
  • I love your use of easter eggs can you please do a video on if there is a way to make a real lightsaber

    Traci MarcovitzTraci Marcovitz4 วันที่ผ่านมา

    SuperCharged5 -SuperCharged5 -4 วันที่ผ่านมา
  • 4:42 BUT, what if the strange matter comes in contact with the singularity or ringularity and creates strange black holes?!?

    Daniel ArchDaniel Arch5 วันที่ผ่านมา
  • I love this channel because they animate and teach me new things

    snickers boisnickers boi5 วันที่ผ่านมา
  • Rick's portal fluid

    noodleman250noodleman2505 วันที่ผ่านมา
  • Bruh bright side ripped off the video

    gungun5 วันที่ผ่านมา
  • good

    Klienten KontoKlienten Konto6 วันที่ผ่านมา
  • Kurzgesagt:"Particles that really dont want to be close to each other,but have no choice" Literally me inside the classroom

    Emotional MeatbagEmotional Meatbag6 วันที่ผ่านมา
  • I love how strange matter is theoretical lol

    Caius PolivkaCaius Polivka6 วันที่ผ่านมา
  • I like to pretend that I understand all of this...

    Oh Yeah Yeah CommanderOh Yeah Yeah Commander6 วันที่ผ่านมา
  • But WhAt AboUT the TIBERIUM??

    Cryogenius333Cryogenius3336 วันที่ผ่านมา
  • Yo thats pretty *strange*

    LowSubs GamingLowSubs Gaming6 วันที่ผ่านมา

    Darlene NguyenDarlene Nguyen6 วันที่ผ่านมา
    • Lol

      WaeWaeWaeWae5 วันที่ผ่านมา
  • Strangelet: i will destroy this galaxy And colide with others Sargitarius a: Just try

    Lucas gamerLucas gamer6 วันที่ผ่านมา
  • Only suggestion for human civilization ☠️☠️☠️" Curiosity killed the cat "☠️☠️☠️

    Suhas NayakSuhas Nayak7 วันที่ผ่านมา
  • This is the stuff you make in chemistry class when you don't listen to the teacher well enough...

    ionisatorionisator7 วันที่ผ่านมา
  • Strange matter is nothing than ur fukin mind u SOB😬😬😬🖕🖕🖕🖕🖕🖕

    Abhinav MishraAbhinav Mishra7 วันที่ผ่านมา
  • “things will get stranger literally.” Me: no no no don’t tell me this is dangerous *tells everyone to freak out

    Camille EdwardsCamille Edwards7 วันที่ผ่านมา
  • I feel smarter than Albert Einstein

    Pointless ChannelPointless Channel7 วันที่ผ่านมา
  • 7:04 is literally the DUMBEST THING POSSIBLE. If a single fucking molecule of a Strange mater can essentially destroy an entire planet. Why the fuck would you have that on Earth? Even if it was in a container? All some terrorist or psychopath has do is blow it up and we are all screwed. Strange matter would be used as a futuristic weapon. Not a power source. It would could be one of our only defenses against Meteors big enough to destroy earth I guess. But it'd be far safer just make a strong enough laser or gun

    MakasMakas7 วันที่ผ่านมา
  • man strange matter really wants to throw hands with the universe

    suchachadsuchachad7 วันที่ผ่านมา
  • It's basically *♫quarks & stuff♫*

    KubacraftKubacraft7 วันที่ผ่านมา
  • A Black dwarfs video would have been nice:)

    TechnicendTechnicend7 วันที่ผ่านมา
  • Why is science teaching us lies? The big bang was when adam and eve banged on each other 7 billion babies appeared and we instantly became technologically adcanced.

    Botyal TotertutalBotyal Totertutal8 วันที่ผ่านมา
  • Wth can you say that gravity is a weak force when it has enough force to compress such a electron and porton and force them to stay together ... Like if u agree

    vrushali choutrevrushali choutre8 วันที่ผ่านมา
  • Just a reminder: *BUT HEY, IT'S JUST A THEORY*

    James aka CharaJames aka Chara8 วันที่ผ่านมา
  • Kurzgesagt said in the video up and down quarks are stable but after a few seconds later they said that strange quarks are stable than any other quarks???

    Joveniano Jr . GorduizJoveniano Jr . Gorduiz8 วันที่ผ่านมา
  • Bruh they ain't even a threat bruh what you on about bruuhh!

    NAME LESSNAME LESS8 วันที่ผ่านมา
  • Creo que la materia comprimida en esos núcleos solo puede existir dentro. Luego es posible que si sale explote o.. Provoque un nuevo universo (Cantidad suficiente para expandirse sin que pueda medirse) Pero si se mide se medirá que igual en este momento se pueden estar generando nuevos universos.

    Jr. RychieJr. Rychie8 วันที่ผ่านมา
  • Chookity?

    Ale BertoAle Berto8 วันที่ผ่านมา
  • Kurzesagt! In the video I you said that the only way to destroy strangelets Was to send them into a black hole, but if was to send them into a black hole, but it would just turn all the condensed matter in the black hole into strangelets

    Aaron MatthewsAaron Matthews8 วันที่ผ่านมา
  • So strange quarks by themselves (i.e of course with other types of quarks in some radioactive nuclei or something in which they normally exist outside neutron stars), decay into regular quarks but inside neutron stars where there is only strange quark soup, they are stable? So strange matter, if found outside neutron stars is stable but they can't form outside neutron stars due to lack of pressure? Am I getting this right?

    Shourjo DuttaShourjo Dutta8 วันที่ผ่านมา
  • You totally are wrong, this is not dangerous, kurzgesagt is more dangerous I am traumatized by him

    Michelle ZhangMichelle Zhang8 วันที่ผ่านมา
  • Im from brasil and im have one mensage "HUE OR UNION"

    RELUCYRELUCY9 วันที่ผ่านมา
  • My penis transform into harder one upon seeing female

    Thurein TunThurein Tun9 วันที่ผ่านมา
  • So this is all about the battle of forces

    Thurein TunThurein Tun9 วันที่ผ่านมา
  • So "we" means a bunch of birds in this case right?

    Thurein TunThurein Tun9 วันที่ผ่านมา
  • step 1:univers off billions galaxy,s step 2: black hole,s dangoerous planets step 3: need birds step 4: go space death ice breath step 5:sun is hot

    Imran LeeImran Lee10 วันที่ผ่านมา
The Most Dangerous Stuff in the Universe - Strange Stars Explained