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!


  • Kurzgesagt – In a Nutshell

    Kurzgesagt – In a Nutshell

    Il y a 3 mois

    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.

  • Junior Gabe

    Junior Gabe

    Il y a 7 jours

    The quarks look like miis. From the wii.



    Il y a 9 jours

    Strange Matter is purely Science fiction it Doesn't Exist Neither do black Wholes your whole production is Cartoons because it's all Science Fiction

  • Mattew Stone

    Mattew Stone

    Il y a 16 jours

    I Like your video



    Il y a 17 jours

    Does black holes die out?

  • Felix Reuß

    Felix Reuß

    Il y a mois

    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 ^^

  • Richard Polster

    Richard Polster

    Il y a 8 heures

    What the duck

  • PRGG


    Il y a 10 heures

    Everyone gangsta untill strangelet touches them

  • Edin Meco

    Edin Meco

    Il y a 14 heures

    Fascinating. The Universe truly is a strange and we may never understand it. Strange Matter could literally be heading to earth at a fast speed but the Strange Matter could be trillions upon trillions of kilometres away.

  • A Google User

    A Google User

    Il y a 15 heures

    We all already know how the universe began, but it's a little religious so I'm not going to say

  • Appoddigare


    Il y a 17 heures

    Universe is such a creepy place full of creepy stuff

  • Leela Patil

    Leela Patil

    Il y a jour

    just put another qark ather than up and down ones maybe

  • Damir Vakhitov

    Damir Vakhitov

    Il y a jour

    I don't think this is the entire story. While it is true that strange matter can be contagious, the strangelets can also be ionized or something what makes them not harmful.

  • AntSwift1


    Il y a 2 jours

    sounds like a black hole, because they would also eat up light making them black

  • heshers


    Il y a 2 jours

    strange matter is how the original xbox intro was made

  • Samuel Li

    Samuel Li

    Il y a 2 jours

    When we have enough technology (like advanced particle accelerators) we can use strangelets as weapons! Most efficient celestial body destroying method ever.

  • 陳達運


    Il y a 3 jours

    Quack:too much pressure, I wanna be alone

  • Abdul Rahman

    Abdul Rahman

    Il y a 3 jours

    Well, now we know what Vibranium is made up of....

  • vengful howl 2358

    vengful howl 2358

    Il y a 3 jours

    Nobody: Strange matter: perfectly all things should be.

  • Lothric Dogs

    Lothric Dogs

    Il y a 3 jours

    But when is the flood coming?

  • Steve Wharram

    Steve Wharram

    Il y a 3 jours


  • Aidan Adkins

    Aidan Adkins

    Il y a 4 jours

    2:33 The infinity stones.

  • Kiz Armstrong

    Kiz Armstrong

    Il y a 4 jours

    I ❤️❤️❤️❤️❤️ your videos so much and I ❤️ science 🧪

  • Kevin Müller

    Kevin Müller

    Il y a 4 jours

    Kurzgesagt: talks about _strange_ things Everybody in comments: *MEMES*

  • Logan Browne

    Logan Browne

    Il y a 4 jours

    Question, is it actually green

  • Supertrain12


    Il y a 4 jours

    Literally *_EVERYTHING_***: *exists* Strangets: It's free real estate.

  • See U Later

    See U Later

    Il y a 4 jours

    So basically Strange matter is a cancer sick at microscopic level 😈

  • Oz Channel

    Oz Channel

    Il y a 5 jours

    So we were gearing a black hole hitting us and consuming us, but we had zero idea a flying stranglet drop can turn us into another matter that also kills us, clap clap.

  • Songbird


    Il y a 5 jours

    2:07 called quacks He didn’t said that but he could have

  • Chinchilla Warrior

    Chinchilla Warrior

    Il y a 5 jours

    I really like how you animated birds instead of humans. they're so cute!!

  • Emmanuel Anthony

    Emmanuel Anthony

    Il y a 5 jours

    Nice! I subscribed this is so good

  • Leandro Bonfim

    Leandro Bonfim

    Il y a 5 jours

    imagine super advanced alien civilizations using strangelets to purge entire solar systems, that is mind blowing.

  • Shayne O'Neill

    Shayne O'Neill

    Il y a 5 jours

    Its the false vaccum thing that keeps me up at night. Strangelets are a spooky concept, but probably not a thing, or it would have wrecked us by now. But the vaccum energy of the universe is fundamental, and with a bit of math you can plot out ways of breaking it, as implausibly difficult as it would be. And thats not "weird shit eats a star", thats "nothingness eats a universe"

  • Zakaria Zishan

    Zakaria Zishan

    Il y a 5 jours

    Comment section *talking about science* : We don't do that here.

  • Army Kookie

    Army Kookie

    Il y a 5 jours

    4:12 soo bedrock?

  • Jackson Boulton

    Jackson Boulton

    Il y a 5 jours

    Mabey strange matter is uranium

  • XxnoobslayerxX Oof

    XxnoobslayerxX Oof

    Il y a 5 jours

    Universe: exists Stranglets: I’m about to end this whole mans career

  • TotalRookie_LV


    Il y a 5 jours

    So, it's sort of prions of a stellar size - not alive, but infectious.

  • Hollyleaf Gaming

    Hollyleaf Gaming

    Il y a 6 jours

    Normal ducks: Quack quack Kurzgesagt: Quark quark

  • PatrickASMR Mukbang

    PatrickASMR Mukbang

    Il y a 6 jours

    Am I the only one who finds this serious?

  • Lee Shaw

    Lee Shaw

    Il y a 6 jours

    stranger things is starting to make sense now

  • dinozaur pickupline

    dinozaur pickupline

    Il y a 6 jours

    Hello to a stranglet passing by

  • Сабай Сабаич

    Сабай Сабаич

    Il y a 6 jours

    If the strange matter so stable why it would disappear after the big bang?

  • Choxolet yo

    Choxolet yo

    Il y a 6 jours

    *throws srange matter into black hole Captain: why is the black hole turning green and why do I hear boss music?

  • Hsae Reh

    Hsae Reh

    Il y a 6 jours

    So this is actually real right?

  • Yours Truely

    Yours Truely

    Il y a 6 jours

    In the past we had fairytales about witcges and elfs. monsters and kings. Now we hace unicerse fairytales We have no clue how earths magnetic field works or what gravity is we only drilled 12km deep on a single spot but he we understand the universe...

  • Ant Man

    Ant Man

    Il y a 7 jours

    dont let hulk get his hands on this

  • Contemplative Insight

    Contemplative Insight

    Il y a 7 jours

    I didn't know that stars and planets could catch a greeny contagious astronomical strangelet shrink flu when a Quark star spits out or sneezes 🤔

  • Arfaoui Amine

    Arfaoui Amine

    Il y a 7 jours

    I guess scientists would just call it the "strange flu"

  • Moechtegernpilot1


    Il y a 7 jours

    Und was ist mit Joghurtsternen??

  • 2h4ck LiF3

    2h4ck LiF3

    Il y a 7 jours

    That s really cool, interesting . Carry on guys ciao from Italia!

  • klazzera


    Il y a 7 jours

    do TomSka work with you to make these videos? moons face in 5:29 looks like his drawings

  • MauLob


    Il y a 7 jours

    4:38 If there's something strange in your neighbourhood Who you gonna call?

  • Vedant Jumle

    Vedant Jumle

    Il y a 7 jours

    universe war z

  • Kristaps Vilnis

    Kristaps Vilnis

    Il y a 7 jours

    quarkmire new family guy episode

  • Adolf Hitler

    Adolf Hitler

    Il y a 7 jours

    That would be a grat animepower

  • LoveYourselfBTS Answer In ROBLOX

    LoveYourselfBTS Answer In ROBLOX

    Il y a 7 jours

    I feel like the comment section of every Kurzgesagt videos are meme comments

  • m' lady

    m' lady

    Il y a 7 jours

    We could use it for a power source

  • Pierre R.

    Pierre R.

    Il y a 7 jours

    Kurzgesagt german is a great way to lerarn german btw xD

  • Sam Labo

    Sam Labo

    Il y a 8 jours

    Before I die, I want to be strange Matter Then turn things into stranglets.

  • Shareen Ho

    Shareen Ho

    Il y a 8 jours

    Leave it to this channel to make my problems feel waaaaaay tinier. Bless.



    Il y a 6 jours

    this is your problem too. they just gave you something bigger to worry about. something out of anyones control.

  • Daniel Grace

    Daniel Grace

    Il y a 8 jours

    So if this strange matter is virtually indestructible then how come it seems to be so rare i.e. we haven't observed it?

  • Frnk S

    Frnk S

    Il y a 8 jours

    "You're denser than a neutron star" 😂

  • 1000 Subs By Comments

    1000 Subs By Comments

    Il y a 8 jours

    I wanted to know the answer in the first 30 seconds, instead I learned 100 new things. Thanks

  • player catching hackers

    player catching hackers

    Il y a 8 jours

    Who’s adrenaline was pumping during this video

  • Unknown


    Il y a 8 jours

    What if strange matter is invisible? Maybe the bootes void has something to do with this

  • Matheus M.

    Matheus M.

    Il y a 8 jours

    BAVI - Birds Are Very Important

  • leoncita 2330

    leoncita 2330

    Il y a 9 jours

    Damn I wasn't expecting to get scared about strange matter.

  • Mason Puhalovic

    Mason Puhalovic

    Il y a 9 jours

    What if almost everyone and everything has their on version of strange quarks

  • The1catt Cat game

    The1catt Cat game

    Il y a 9 jours

    I am stranger than the strangest thing in this world

  • Britty Cheeze

    Britty Cheeze

    Il y a 9 jours

    This is epic, giving me one more thing to worry about one video at a time! jk this channel is great

  • Joseph Lucena

    Joseph Lucena

    Il y a 9 jours

    What if strange matter is just dark matter but the strange matter is so small and dense that we see nothing

  • Mobile Pro

    Mobile Pro

    Il y a 9 jours

    Anxiety has entered the chat

  • DucQy


    Il y a 9 jours

    Nice. Now I won't sleep at night.

  • Paolo Salazar O.

    Paolo Salazar O.

    Il y a 9 jours

    I have a cuestion, i hope u can help me, if the strange matter was in the begining of the universe, why din't "transform" all the matter in strage matter? and now can?

  • Jons Huib

    Jons Huib

    Il y a 9 jours

    “Neutron stars are the densest things that are not black holes.” What about magnetars?