The Most Dangerous Stuff in the Universe - Strange Stars Explained

  • Published on Apr 14, 2019
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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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Comments • 13 479

  • 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.

  • rahul kumar
    rahul kumar 11 hours ago


  • EP114587
    EP114587 11 hours ago

    The most dangerous stuff in the universe? An idiot with a platform to reach millions.

  • rpg jones -that one meowstic-

    You know what strange matter looks like? That’s right, the portals from rick and morty. Rick is slinging strange matter across dimensions

  • Justin Graboski
    Justin Graboski 11 hours ago

    If a neutron stars is as the early universe was, wouldn't strangelets have been present from the beginning?

  • Crispy Nuggets
    Crispy Nuggets 11 hours ago +1

    Why are black holes the answer to all of our universes problems?

  • Firzatullah Al ghiffari

    Please... Indonesian subtitle

  • Firzatullah Al ghiffari

    Please... Indonesian subtitle

  • the masked foe
    the masked foe 11 hours ago

    My penis is one of them

  • Eddy Tjhia
    Eddy Tjhia 12 hours ago

    single atom of strangelet hit a human, poof Zombie Apocalypse

  • Siddharth Unova
    Siddharth Unova 12 hours ago

    @kurzgesagt tried to put donald trump as a bird at 5:52 ,the red one in this video😂😂

  • Priyam Mitra
    Priyam Mitra 12 hours ago

    If this strange matter already exists inside a neutron star and has properties which changes matter I don't understand why there exists a neutron star instead of only strange stars. Wouldn't the strange matter convert regular neutron star matter into strange matter?

  • PTI Gaming PH
    PTI Gaming PH 13 hours ago

    Do you believe in god?

  • James McFillin
    James McFillin 13 hours ago

    Strange Matter:
    Normal Matter: wow you're so cool I wanna be just like you

    MARIO BROS PLUSH 13 hours ago

    Are these theory's

  • Brayden Rankin
    Brayden Rankin 13 hours ago

    Well, I for one am excited for the heat death of the universe to instead be a zombie like plague of strange matter infecting everything and forming some kind of stable state universe.

  • Nathan
    Nathan 13 hours ago

    what the fuck

  • fricjo
    fricjo 14 hours ago

    If I understand correctly, though ("if" being the operative word here, as I haven't studied this in detail), strange quarks eventually decay to up quarks and W bosons. So wouldn't strangelets eventually just decay into stable hadrons over time? Or are they so "stable" that even the strange quark component is unable to decay?

  • Blair Wittneben
    Blair Wittneben 14 hours ago +1

    No one:

  • space human
    space human 14 hours ago +3

    class: apollyon
    Description: strange bEan

  • Vincent 1234
    Vincent 1234 14 hours ago +1

    I guess you could say there are 2k _strange_ people out there

  • Victor
    Victor 14 hours ago +1

    That sounds like a sci-fi horror story. Also Brilliant is too expensive.

  • Coconutszz
    Coconutszz 14 hours ago

    Man science really reads like a bad fanfiction sometimes.

  • SungBen
    SungBen 15 hours ago +1

    Dude, imagine if there was a god-like civilization controlling our universe and black holes are just things made by them to ‘dispose’ of any strange matter out there to prevent it from contaminating everything...

  • Tommy G
    Tommy G 15 hours ago

    Does this mean our universe could be in a neutron star?

  • AntSwift1
    AntSwift1 15 hours ago +1

    Fuckin wierdos

  • Otto von Bismarck
    Otto von Bismarck 15 hours ago

    Except that almost all evidence points to strange matter not existing. If it did, strange stars would be almost the rule for neutron stars, not the exception.

  • tubbzz playzz
    tubbzz playzz 15 hours ago

    Mate I just wanna live till I'm 90 and I'm good

  • Noah Ratajek
    Noah Ratajek 16 hours ago

    this was on my mix tape for some reason... why would youtube thing this is a song.

  • Loes Brijobhokun
    Loes Brijobhokun 16 hours ago

    Dark matter, Anti matter, Exotic matter, and now strange matter?

  • Kristen Lopez
    Kristen Lopez 16 hours ago

    Strange quarks decay into up and down quarks we are safe

  • Sketched in Blood
    Sketched in Blood 17 hours ago

    The little bird scream at 7:12 !!! It's so cute!

  • Ehro
    Ehro 17 hours ago

    If strange matter is so perfect then wouldnt letting it infect everything bring the universe to peace? 🤔
    Im down, come here

  • Ang 25
    Ang 25 17 hours ago

    Who else misses the human animation over the bird animations? No hate whatsoever. This videos always blow me away.

  • Darwin Aguilero
    Darwin Aguilero 17 hours ago

    *thanks personal mix playlist*

  • Woahexdeegg NEXIE
    Woahexdeegg NEXIE 17 hours ago

    How to make an edgy teen want to go to space

  • Night corer
    Night corer 18 hours ago +1

    F*ck we just found the creeper from creeper world series

  • JoeNoshow27
    JoeNoshow27 18 hours ago

    This was not the source of human destruction I was expecting.

  • Lucas Luka
    Lucas Luka 18 hours ago

    Thanks yt for puts this video in raccomanded
    This is pure gold

  • Sara
    Sara 18 hours ago

    I think Kurzgesagt made it their life goal to make us as miserable as possible before dying.

  • Zypher Gameing
    Zypher Gameing 18 hours ago

    What happens if a strangelet hit a human?

    JEŇÝK KOŇÝK 18 hours ago

    Strange matter is dangerous for our comrades. We have to do a small deportation (of strange matter) to Siberia.

  • Tal Tamir
    Tal Tamir 18 hours ago

    So what I am hearing is that strangelets make for excellent exterminatus weapons.

  • Xactly !
    Xactly ! 18 hours ago

    So.... is this how the zombie apocalypse would appear from?😂

    CHARLIEBOT 19 hours ago

    Please say sike...

  • Richard Kassian
    Richard Kassian 19 hours ago

    “Neutron stars the the densest things that are not black holes.”
    I dunno, I know some people who are pretty dense

  • Scott Prazak
    Scott Prazak 19 hours ago

    Like Phazon!

  • A G
    A G 19 hours ago

    I'd like to suggest a video topic: Bose-Einsteinium condensate

  • 2018 Mclaren Senna
    2018 Mclaren Senna 19 hours ago

    A new way to destroy the universe! Wonderful!

  • Superdameonglitchy4 Denovchek

    yay realitybending

  • Carlos Salazar ND
    Carlos Salazar ND 19 hours ago

    So strangers are people who got hit by a stranglet?

  • Jan Czasak
    Jan Czasak 19 hours ago

    Thanks again for existential dread Kursgezagt!

  • Just Another Mapper
    Just Another Mapper 19 hours ago

    Video: Appears in my Music playlist because I removed a video from it.
    Strange Bean Matter: 6:18

  • Lazarus The adventurer
    Lazarus The adventurer 19 hours ago

    Wow! I am surprised that you found a topic on astrophysics and nuclear physics that i never hesrd before!!!
    I knew the video was good even before i watched it but now i am even more amazed!
    Thank you little birds! Thank you very much!

  • Luke Rees
    Luke Rees 19 hours ago


  • Kevin Harrelson
    Kevin Harrelson 20 hours ago

    If this COULD happen, it likely already would have...

  • Cut Man
    Cut Man 20 hours ago

    Strange Matter:
    -Can't infect things
    -Part of hypertheorethical Quark Stars
    -Being Part of an Quark Star is absolutely amazing
    Plz make an Video about Quark Stars ;-;

  • Thomas Voß
    Thomas Voß 20 hours ago

    In german: Seltsame materie

  • Daniel Vasconcelos
    Daniel Vasconcelos 20 hours ago


  • Luken
    Luken 20 hours ago +1

    Oh sorry for my bad english ;))))))))))))))))))))))))))))))))))))))))

    THE FAKE PIE 20 hours ago

    yeah you REALLY simplified it !
    it's not a problem but , yeah ...

  • Leonardo Madera
    Leonardo Madera 21 hour ago

    Kursdezagt: The scientists thinking about the cause of neutron stars and strange matter today may be setting up humans for a future beyond our wildest imaginations.
    Or, maybe not. Time will tell.
    Me: I CAN'T WAIT 100 YEARS!

  • centipede
    centipede 21 hour ago

    It would be interesting if you do a video abought the first picture of a black hole.

  • sasquatchpatch
    sasquatchpatch 21 hour ago

    Creeper Quark

  • Gilded Drake
    Gilded Drake 21 hour ago

    can you make a video on how canned food is the most ecological thing in your local supermarket ?

  • Steven Lucky Linoh
    Steven Lucky Linoh 21 hour ago

    Fuck u

  • Ladybug bee
    Ladybug bee 22 hours ago

    Cute birds.. I love your style

  • Jared Morris
    Jared Morris 22 hours ago

    Succ peen

  • Dan
    Dan 22 hours ago

    Isn’t it wrong to say something “bends the rules of the universe” ? The laws of the universe are never broken, we just don’t understand what all the laws are yet?

  • Terrence Andrew-Blondin

    I love the pop culture references in these videos

  • Jan Matoušek
    Jan Matoušek 23 hours ago

    Kurzgesagt, when clickbait actually delivers

  • Gregory Woltornist
    Gregory Woltornist 23 hours ago

    I would be really interested in a video on autism and its function!

  • sunil bhardwaj
    sunil bhardwaj 23 hours ago

    You said quarks cannot be separated . Then how can they saperate in a neutron star

  • Sylvia A
    Sylvia A Day ago

    The star looks cool

  • Sandeep Kumar Dash

    If strange matter is stable, then why do strange quarks decay?

  • Rebecca Smith
    Rebecca Smith Day ago

    I know a channelb that's a lie. It's IMPOSSIBLE for a LOT of comments to ask for the same thing unless they have this group that posts all these comments to overtake the other comments! The channel name is [literally] called, " awesome gameplays."

    • Rebecca Smith
      Rebecca Smith Day ago

      Kinda like how Facebook got popular because they stole videos from USclip

  • Roonin
    Roonin Day ago

    in just 5 days almost 3 mil views dam

  • hichem benrezoug

    Arabic subtitle pleeeeeeaaaaaaaaseeee

  • ke ne
    ke ne Day ago

    That was brilliant.. thank you!!!?

  • mvpunisher1
    mvpunisher1 Day ago

    And...If all this is wrong?

  • Kamar Taj
    Kamar Taj Day ago

    Где русские субтитры????

  • Pan De'Monium
    Pan De'Monium Day ago

    I like how the one bird that pops its head out of the snow saying "Didn't see that coming"... Looks ironically like Donald Trump. Lol

  • Owen Davies
    Owen Davies Day ago

    I love this

  • patrikcath
    patrikcath Day ago +1

    Almost 4 million views in 4 days. Jesus.

  • Noskinder Hinder

    This video is indeed very ‘strange’
    I’m not sorry

  • Kodi
    Kodi Day ago

    *whispers* hey..dont tell infographics show..but Im subscribed to you

  • Ash Mohan
    Ash Mohan Day ago

    Plss tell us where we can get all these backgroud scores. They are too good 😍😍😍

  • Adrivero
    Adrivero Day ago

    Your videos are simply the best.

  • Kunal Gulati
    Kunal Gulati Day ago

    *uck my internet

  • lilly zhong
    lilly zhong Day ago

    Black hole:I’ll deal with it,guys!

  • Good Channel Name

    What about bottom quarks? Aren't those denser? (I know top quarks are the densest, but they can't pair up)

  • Spooky Cube
    Spooky Cube Day ago

    -Necrocide Matter incoming-

  • 나홍준
    나홍준 Day ago


  • Lesrac
    Lesrac Day ago

    Other:weird matter
    Me an intellectual:cosmos zombie

  • Alexandre Godoy
    Alexandre Godoy Day ago

    Suggestion for a video: "How memories are formed?"

  • Kevin Maguire
    Kevin Maguire Day ago

    This is way too far. This is complete speculation. There is no evidence supporting any of this. It is only theoretical models that attempt to explain a few experimental results. I don't think this is the type of thing that Kurzgesagt should be presenting.

  • dude
    dude Day ago

    the music is awesome at the quark part

  • BloodyPlayGames
    BloodyPlayGames Day ago

    You should make a wideo about Brown Dwarfs

  • Cyb3rAssassine
    Cyb3rAssassine Day ago

    Science (from the Latin word scientia, meaning "knowledge") - source wikipedia
    Can't see any knowledge behind this video...

  • Fayanora Ahnabahn

    I am Locutus of Strange Matter. You will be assimilated. Resistance is futile but amusing.