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 • 15 464

  • Kurzgesagt – In a Nutshell
    Kurzgesagt – In a Nutshell  6 months ago +4720

    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.

    • Z3abiii
      Z3abiii 16 hours ago

      thanks for the awesome content 👌🏽

    • Gabreil Stapleton
      Gabreil Stapleton 3 days ago

      Could you possibly put a Dyson sphere on a strange star

    • Tahmas
      Tahmas 6 days ago

      Why 688?

    • SpudSupreme
      SpudSupreme Month ago

      Somebody needs to fix the captions. They've seen better days.

  • pnutmcmackin
    pnutmcmackin 3 hours ago

    You should start your own TV show on channel 3

  • Daniel17 studio
    Daniel17 studio 8 hours ago

    This is in a playlist ,,questionable asmr videos"

  • Jenny Lubs
    Jenny Lubs 12 hours ago

    So they could have named them "stranger things" but didn't ???

  • Adam H7
    Adam H7 15 hours ago


  • Carlos Spiceywhiener
    Carlos Spiceywhiener 15 hours ago


  • Richmarc Angelo Vea
    Richmarc Angelo Vea 17 hours ago

    "it can destroy everything it came to contact with"
    Me: so this is the phoenix force

  • John Wang
    John Wang 19 hours ago +1

    What if, you were a super advanced civilization in war with another super advanced civilization. If you had your hands on a bunch of strangelets, you could just shoot them at planets, starts, ships and instantly obliterate them. It might be a new kind of warfare.

  • may 0
    may 0 23 hours ago

    Well if it did release the electrons of any atom we throw into it, we could generate as much power as we'd ever need with it. It would also become the strongest weapon we would have at our disposal but hey, free power.

  • Oatmeal Joey Arnold

    Angry Smart Birds

  • Oatmeal Joey Arnold

    Angry Birds

  • Oatmeal Joey Arnold

    Quarks 6 Kinds - Up Down Top Bottom Charm Strange

  • Lawrence Va-jello

    As much as I love yalls videos and animation,they always leave me with pure fear of everything outside of the earth

  • An Sung
    An Sung Day ago

    if it only takes one neutron star collision to create trillions of strangelet, which one can destroy a star or planet, wouldn't the world turn mostly strange matter fast? why are we not observing those polluted strange stars?

  • Retered Boi
    Retered Boi Day ago

    Thats MY BIRD ON THE LEFT 0:22
    The blue one

  • SDJ
    SDJ Day ago

    Im watching educational space videos for entertainment

  • Some Human
    Some Human Day ago +1

    You are so close to 10M subscribers

  • Krazt
    Krazt Day ago

    I was thinking, could we use strange quarks to power the black hole bomb in your other video.

  • Grant Deibler
    Grant Deibler Day ago

    Wait would air also turn into strange matter if a stranglet touched it?

  • LittleKnight
    LittleKnight Day ago

    Ah yes, i just LOVE studying brilliant while the strange apocalipse happens

  • Vic Billet
    Vic Billet Day ago

    Everybody gangsta till the moon starts going out of orbit for the kurtsgezagt intro

  • looosemeat
    looosemeat Day ago

    So the expansion of the universe is in our favor?

  • Vesania
    Vesania Day ago

    Merch idea: Strange Quark plushie, with optional buff arms

  • Ricardo Gonzalez Mendez

    Halo's flood IRL confirmed

  • Namemark
    Namemark 2 days ago

    So you are telling me any second this green shit could hit the earth and make everything on earth strange matter?
    Nice to know

  • Daniel Ruiz
    Daniel Ruiz 2 days ago +1

    5:18 The Colour Out Of Space by H.P Lovecraft

  • Ian Rocha
    Ian Rocha 2 days ago

    Was “Nothing new under the sun” a j cole reference orrrr

  • Mr.Krabs is not real and cannot hurt me

    Although it's very lethal. We're humans, we'll somehow find a way to make a strange nuke

  • Cesare Borgia
    Cesare Borgia 2 days ago

    All this fascinating shit and people argue about gender, lol...

  • veryimpressive
    veryimpressive 2 days ago

    this is bullshit

  • Aeredhael Redfalen
    Aeredhael Redfalen 2 days ago

    So this stuff is basically the bigger, scarier version of Vonnegut's "ice-nine" from "Cat's cradle". That's scary.

  • Nadman Faisal
    Nadman Faisal 2 days ago

    How come everything can teach us how the universe began but still we don't know how it began ...

  • Nikolay Yurchenko
    Nikolay Yurchenko 2 days ago

    If strangelet can convert stars, we would see many stars converted as we observe through telescopes. We would also see neutron stars with unusually tiny masses. As we don't see these, we can say that hypotesis of this strange matter is highly improbable.

    • Nikolay Yurchenko
      Nikolay Yurchenko 2 hours ago

      @Alex M. We currently see stars almost across the whole visible universe observing time periods almost from the first stars birth (for the most farthest galaxies with big red shift). We track many neutron stars and know masses of many of them. If such an phenomenon with strangelets infection existed, it would largely spread across the universe and affect our observations. And moreover, if strangelets are infectious, we would have very different neutron stars. Because strangelets would posess the whole neutron star matter and it behavior would largely differ from what we observe.

    • Alex M.
      Alex M. 7 hours ago

      With our current means. For a long time black holes were unobservable, we simply divised a way to "see" all that is affected by them decades before we could "observe" them. Who knows in the near future?

  • Carlos Pérez Chávez

    Is that Trump at 5:54?

  • Alpha MECH
    Alpha MECH 3 days ago

    So black holes save us but still are drawing us in to finish us, so we are super rare to reach this point, or the universe is so big we have yet to understand how to use and Manipulate such elements properly. Or are we just a part or a cell or atom of a way greater being.

  • Helisfer
    Helisfer 3 days ago

    >it might be infectious
    >goes on a minute and a half rant about how all life could end on earth
    Wow when did you suddenly just start pulling things out of your ass like that?

  • Clara Martens Ávila

    It's protomolecule, just you wait a few years

  • Duolingo Oul
    Duolingo Oul 3 days ago +1

    Well, scientists do really know everything except how to name what they know

  • Vincent R
    Vincent R 3 days ago +2

    The idea Strangelets exist is just a theory, its purely a hypothetical particle, and the theory they would breakdown other nearby protons and neutrons and produce more strangelets is just a theory, so this whole video is a theory ontop of a theory ontop of a theory..

    • Quin Barnard
      Quin Barnard 10 hours ago


  • Gabreil Stapleton
    Gabreil Stapleton 3 days ago

    Could you possibly put a Dyson sphere on a strange star

  • Deus Imperator
    Deus Imperator 3 days ago

    Its warpstone yes-yes!

  • Vít Pokorný
    Vít Pokorný 3 days ago

    Lets make a Strangelet bomb! Whos with me?

  • 2EnjoyEverything
    2EnjoyEverything 3 days ago +1

    anybody else saw "donald duck"? lol that was a clever one :D

  • Someone404
    Someone404 3 days ago +1


    Universal solvent

  • Jack MacArthur
    Jack MacArthur 3 days ago

    We need Doctor Strange to help us.

  • spindash64
    spindash64 3 days ago

    So basically it’s a more easily quarantined Vacuum decay event in how it screws us over?

  • Francesco Buffoli
    Francesco Buffoli 4 days ago

    So basically strange matter is Tiberium

  • Drillkicker
    Drillkicker 4 days ago

    This is what physicists come up with when they run out of experiments to do

  • pyrointeam
    pyrointeam 4 days ago +1

    You know Stars come and go, only a few are Evergreens.

  • Kano
    Kano 4 days ago

    thank fuck I watched upisnotjump's universe videos before this

  • Marcell
    Marcell 4 days ago

    3:45 it is bruce banner

  • Will D. Skies
    Will D. Skies 4 days ago

    I have serious questions has to how scientists found out what is inside a neutron star

    • Quine Borges
      Quine Borges 2 days ago

      It's very simple but not that easy.

      Since quarks exists and pressure inside such star is bigger than the measured nuclear strong force for that atom/quark they set a equation to work on (Probably related to energy), once this equation is solved they try to interpret what it could mean by comparing with stuff that they know.
      it is simple the hard part comes from solving the equation, there probably will be multiple ways to solve it (some arriving at a correct result) and once it is solved you have to read it to know what such equation is implying.

  • Juni Post
    Juni Post 4 days ago

    Problem with trying to determine what strange matter is starts firstly with Trying to impose our own understandings of the laws of the universe onto it. When dealing with something is already KNOWN to piss on reality as it is. It is best to approach it by just tossing everything we assume we know out the fucking window to start with before even attempting to try to understand it. if you assume that "it" in our reality will do A-1 all the time. Assume it will do ZQ-8674 More likely every Tuesday in June then The usual A-1 on a February 16th. Humans can be so fucking arrogant in there self imposed belief that everything must match what we so far know about what is "reality'

  • Ryu Gaizer
    Ryu Gaizer 4 days ago

    5:11 when broly coming to earth

  • Luke Ferrer
    Luke Ferrer 4 days ago

    Even the Stars have Disease that can Spread throughout the Universe or the Galaxies.

    THESILLY SHOW 4 days ago

    I see too many purple ads

  • Deion K Binoy
    Deion K Binoy 5 days ago


  • Disregardian
    Disregardian 5 days ago

    7:15 that noise omgomgomg

  • Antoine 123 UwU
    Antoine 123 UwU 5 days ago

    It is everywhere or not

  • Ben Quinney
    Ben Quinney 5 days ago

    South Dakota