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 Nutshell12 giorni fa
    • feeling cute today... might start ww3 later... no biggie

      460p2460p22 giorni fa
    • hmmm... a tungsten bullet in a railgun might work but the atmosphere is going to f up my trayectory...

      460p2460p22 giorni fa
    • Hmm... how much powder does it take to shoot a bullet into space and how do I calculate the trajectory of the bullet in correlation to a satellite...

      460p2460p22 giorni fa
    • Please do one on baby formula

      Dragon DoradoDragon Dorado3 giorni fa
  • please make a video on psychedelics

    Christian DanielsChristian Daniels12 ore fa
  • What if a stranglet was to strike a true Vacuum?

    Michael GinchMichael Ginch12 ore fa
  • What if this is actually what Spiral Power was?

    Pohatu NuvaPohatu Nuva13 ore fa
  • You should make a video explaining article 13 (now 15 and 17) Pls give this video a like so they can see it

    Andrew GhoulAndrew Ghoul15 ore fa
  • 7:15 I think at this point the vid can serve for a good YTP

    Sergio Corona PalazuelosSergio Corona Palazuelos15 ore fa
  • 고마워요. 덕분에 머리가 더 복잡해졌어요.......

    센16 ore fa
  • You know I would not mind a few ads on ur videos... keep the quality same and boost ur revenue..👍

    Atif RehmanAtif Rehman16 ore fa
  • Vietnamese ??

    Murad TVMurad TV18 ore fa
  • Can you make a video about dimensions?

    Vytenis RVytenis R18 ore fa
  • That feel when only the voice of kurzgesagt can give you some kind of solace

    Florian GallusFlorian Gallus18 ore fa
  • Hello Kurzgesagt! What do you think about the placebo effect? Are you planning on doing a video on this?

    Zoly EkeZoly Eke18 ore fa
  • Oh shit, so this is basically just grey matter, right? (Only this could be real)

    Ross CarmanRoss Carman19 ore fa
  • Black holes could be made out of strange matter...

    SubscribeToPewdiepieSubscribeToPewdiepie20 ore fa
  • If strangelets could've been around since the begining there must be a way for them to decay back to regular matter otherwise a big chunk of the universe would already be strange matter.

    Antton AdarragaAntton Adarraga21 ora fa
  • We could be already infected

    Mckenzie WelshMckenzie Welsh23 ore fa
  • Please do video about clouds

    Taylor PNGTaylor PNG23 ore fa
  • kurzgesagt: it may be the densest and strongest matter in the universe me: ever heard of extra sticky scotch tape double sided?

    vectropolis -vectropolis -Giorno fa
  • Dr. Strange uses this everyday

    vectropolis -vectropolis -Giorno fa
  • So which plant is this in the new plants vs zombies?

    Captain PlagueCaptain PlagueGiorno fa
  • whats funny than this? Kurzgesagt : how to destory earth with a paper pin

    [] Red Eye [][] Red Eye []Giorno fa
  • So many wats the universe can kill us and here we are still alive.

    Anurag BeckAnurag BeckGiorno fa
  • I come from Vietnam but This video doesn't have Vietnamese subtitle :(( I can't understand at all. Can you make subtitle for it ❤

    NSTNSTGiorno fa
    • +vectropolis - I know, but I can't understand the content of this video :(( I am not good enough to translate it into Vietnamese

      NSTNST15 ore fa
    • you speak english......

      vectropolis -vectropolis -Giorno fa
  • The scariest video on IT-vision “Yeah is the world could be consumed by a tiny particle hitting it at any moment and there’s no way to see it coming” “Yeah but there’s not many of these particles are there?” “Oh no theres heaps”

    SantasSpySantasSpyGiorno fa
  • Where do I read about strange matter??? The pdfs in the link aren't working for me...

    Jaqen H'gharJaqen H'gharGiorno fa
  • is it just me or rick be using that stuff for portals

    Scrubius MaximusScrubius MaximusGiorno fa
  • 5:52 Trump bird?

    Sath TownSath TownGiorno fa
  • Creepy but amazing

    Galactic 8Galactic 8Giorno fa
  • I love that intro, Kurzgesagt team! Kreu? I should be a patron soon, and thanks for doing the work of Lightbringer

    Lief TheorineLief TheorineGiorno fa
  • the animation style and the narrator always reminds me of the hitchhikers guide to the galaxy when they are accessing the actual hitchhikers guide to the galaxy in the film ;)

    agamemnomagamemnomGiorno fa
  • Doesn’t strange quark decay too then???

    Ishnoor BabraIshnoor BabraGiorno fa
  • How is this not a thing in SciFi?!!! Is this what the red matter from that Star Trek movie is?

    Clint BensonClint BensonGiorno fa
  • Stramge matter will be found in parrol universe

    Nas ZreNas ZreGiorno fa
  • I would love to see you create a video about Full Dive Alternative could that be useful to science, education, entertainment, and many things in general. Can our technology currently support such an idea, or not? PLEASE MAKE ONE. I would be fascinated to see.

    panos fotakidispanos fotakidisGiorno fa
  • just build a wall. We'll be fine.

    brawni83brawni83Giorno fa
  • Kurzgesagt: says literally anything My mind: blown

    Fray__BondFray__BondGiorno fa
  • This music made the subject topic even more ominous, really spooky

    IncomingGhostIncomingGhostGiorno fa
  • welp, I'm traumatized

    Frilled DiloFrilled DiloGiorno fa
  • Could we change the sun to new one

    Harvey AndersonHarvey AndersonGiorno fa

    Ultra noob doge NOOBUltra noob doge NOOBGiorno fa
  • 2019 ?

    Sachin GodishelaSachin GodishelaGiorno fa
  • My brain hurts

    Jamie MayesJamie MayesGiorno fa
  • Please do videos about education and classroom Language....

    10alijo10alijoGiorno fa
  • That was almost twice the syllabus of a whole college semester.

    Ehtisham mushtaqEhtisham mushtaqGiorno fa
  • Ah, more existential dread. Thanks for having me covered. Exurb1a hadn't posted in a while..

    CelanisCelanisGiorno fa
  • Amazing and cool concept

    Aryan DasAryan DasGiorno fa
  • Plz do about the most likely thing to kill all humans

    DeaDDoG//DeaDDoG//Giorno fa
  • Where sub indo

    Untungtandy GamingUntungtandy GamingGiorno fa
  • Giant gamma rays, strangelets... it seems the universe is very passionate about destroying itself and us

    Eron ABCJEron ABCJGiorno fa
  • Can strange matter decay into regular matter?

    The26The26Giorno fa
  • In every single video of theirs, Kurzgesagt contributes to SCP.

    Doğan Kürşat AktaşDoğan Kürşat AktaşGiorno fa
  • so wait if it turns everything it touches into strange matter (supposedly) then the crust or the mantle of the neutron star change into strange matter too?

    Tuna GÖKYOKUŞTuna GÖKYOKUŞGiorno fa
  • My lecturer showed the video on tech taking over labour, was very cool that I saw it on the big lecture screen instead of on my phone usually

    Iam awaterbottleIam awaterbottleGiorno fa
  • Plz remove subtitles 😑😑

    Rutvik ChaudhariRutvik ChaudhariGiorno fa
  • except because all the stuff about strangelets being super common and flying about the universe making other stars go strange doesnt seem to be happening does it. bcus we've never seen even one strange star.

    Super LoopsSuper LoopsGiorno fa
  • Put on headset for better experience

    X ForceX ForceGiorno fa
  • the universe very own Nanobot Apocalypse

    Chickknight GreenleafChickknight GreenleafGiorno fa
  • why do I hear hidden quacks

    R2OTR TeamR2OTR TeamGiorno fa
  • So, if the Large Hadron Collider creates a strangelet by accident we're all screwed.

    Peppe DduPeppe DduGiorno fa
  • Please tell me how you prepare the script.

    abhishek menonabhishek menonGiorno fa
  • favourite youtube channel:)

    charmaine poyntercharmaine poynterGiorno fa
  • Omg i just discover a new deadly thing in the univerese: T-Series

    Daneil LabroDaneil LabroGiorno fa
  • Beautiful animation, every video is designed so incredibly well. We appreciate all the time and effort put into these videos, it pays off. Also the narrator could definitely be the new David Attenborough. Keep up the brilliant work

    MillyMillyGiorno fa
  • Hi kurzgesagt! I really love all of your video! Really interesting! But i hard understand it because of my bad listening and reading in english, can you make it better by adding Indonesia caption/subtitle? I will be love it so much to watch it everytime:)

    Arya MahardikaArya MahardikaGiorno fa
  • Please Make a video on Earth 2.0 - Kepler 452b.

    Abishek SoundararajanAbishek SoundararajanGiorno fa
  • What's the 100th video going to be on, I wonder!

    Grapes GorillaGrapes GorillaGiorno fa
  • Ice-9 anyone?

    Nathaniel LewisNathaniel LewisGiorno fa
  • No Indonesia subtitle : (

    Agung GuritnoAgung GuritnoGiorno fa
  • I love the art style and the birds, make the videos more entertaining and more enjoyable

    Reason2 CraftReason2 Craft2 giorni fa
  • Can you do heisenbergs uncertainty principle?

    WastedPotentialWastedPotential2 giorni fa
  • Hello u guys are my favourite content creators!, and I am really interested in science!, specifically the immune system!, Just asking, but may you please do more Videos about viruses and the immune system! Thank you for reading my comment (I’m just asking u don’t have to 😁) You guys fill information into my head!!!!! Every time I watch your videos!!!

    Oliver HarveyOliver Harvey2 giorni fa
  • It seems unlikely that the principles discussed here would come to bear, seeing as the universe tends towards disorder and expansion.

    R.r. TheninjaR.r. Theninja2 giorni fa
  • Who would win Thanos Shaggy at %100 power Duolingo bird Strange matter

    Caden MonterossoCaden Monterosso2 giorni fa
    • broooo you forgot Big chungus

      [] Red Eye [][] Red Eye []Giorno fa
    • Shaggy; his power is maximum.

      Kevin Von ZarovitchKevin Von Zarovitch2 giorni fa
  • Except, as you said, THEORETICALLY speaking, Strange matter could convert everything else into more strange matter, BUT, no one knows.

    Sonica The hedgehogSonica The hedgehog2 giorni fa
  • Who would win? A purple mad titan with infinity stones OR One strange boi

    Ravi RajyaguruRavi Rajyaguru2 giorni fa
    • One greenie boi

      WzW351 GamingWzW351 GamingGiorno fa
  • What was your best part kurzgesagt

    Preston CrespoPreston Crespo2 giorni fa

    Lori BELori BE2 giorni fa
  • What a great video!! You lost me with the Kessler Syndrome video a while back but this definitely brought me back. What a great way of exploring a new branch of physics and finding something that looks entirely plausible in our universe! Edit: Kessler not Kepler

    Nat ComeauNat Comeau2 giorni fa
    • +Roberta ROBERTO You're right, thanks!

      Nat ComeauNat Comeau2 giorni fa
    • Nat Comeau kessler maybe?

      Roberta ROBERTORoberta ROBERTO2 giorni fa
  • Neutron stars are the densest things that are not *U R M O M*

    Ahmad YehiaAhmad Yehia2 giorni fa
  • So if a strangelet hit a star what you would get is a perfectly stable perfectly stable dense indestructible star that gives of very dim light. So in other words and infinite (but weak) energy source.

    BOSSL3V3LBOSSL3V3L2 giorni fa
  • That sounds fun.

    Lil ZallyLil Zally2 giorni fa
  • Worst channel name ever. Impossible to search for it everytime.

    Gaurav SharmaGaurav Sharma2 giorni fa
  • Sounds like science fiction

    Carlos SanchezCarlos Sanchez2 giorni fa
  • I have so many questions, why would strange quarks only exist inside of neutron stars if they convert everything they touch? Wouldn't they convert the outside too? why aren't we observing stars wink out all the time if this is a real threat and they've existed since the birth of the universe? why hasn't it happened to us yet? how could we possibly know of all of these qualities of strange matter if its never been observed? how can we tell it even exists?

    Kyle LetourneauKyle Letourneau2 giorni fa
  • I know a Doctor who could help with Strange matter Dr. Strange

    Raging InfernoRaging Inferno2 giorni fa
    • Oh fuck this was good

      NippleManNippleMan22 ore fa
  • Black dwarfs.

    Anjali FarkaseAnjali Farkase2 giorni fa
  • No Vietsub???

    Son BachSon Bach2 giorni fa
  • I c ducks

    Flaze07Flaze072 giorni fa
  • じまくー

    Liszt FranzLiszt Franz2 giorni fa
  • wouldnt they just eat until they get the mass of a black hole...

    John TobinJohn Tobin2 giorni fa
  • how could human understand something that may or may not happens in billion years?

    syah fadzlisyah fadzli2 giorni fa
  • How can a human being become immortal? New vid

    _KarmA__KarmA_2 giorni fa
  • Exotic matter sounds like tiberium in command and conquer tiberium war. It engulf living and non-living things to form tiberium based organism

    Wan AsyrafWan Asyraf2 giorni fa
  • I got an idea. You can probably talk about how Apophis will destroy the earth if it ever hits the earth.

    Just some random guyJust some random guy2 giorni fa
  • Keeping its’s size or so massive turn into a black hole!?.

    Maxi ComicsMaxi Comics2 giorni fa
  • Wait nuetron stars are ways denser than our sun so wouldn’t it have more mass?!.

    Maxi ComicsMaxi Comics2 giorni fa
  • 2:40 All other quarks(including strange quarks) seem to decay away quickly. 4:05 Strange matter(which is made of strange quarks) is perfectly stable. Lol look at this perfect logic.

    Wildvine05Wildvine052 giorni fa
    • So true

      SWaspSWaspGiorno fa
  • Please Add Indonesian Subtitles i can't understand if i don't read in Indonesian...

    Ihsan JayaIhsan Jaya2 giorni fa
  • Too ezy to udstand

    박진우박진우2 giorni fa
  • My day was fine until I watch this video.

    vebriyan pashavebriyan pasha2 giorni fa
The Most Dangerous Stuff in the Universe - Strange Stars Explained