The Most Dangerous Stuff in the Universe - Strange Stars Explained

  • Published: 14 April 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 • 13 520

  • 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.

  • Pixelixture
    Pixelixture  8 minutes back

    Thanks for scaring the crap out of me!

    • 3ICE
      3ICE  18 minutes back

      what is up with the subtitles this video? they are hard to see blue
      I tried reset, nothing changed

      • 3ICE
        3ICE  10 minutes back

        found it! disable video override to get back your preferred subtitle styles.
        Damn it Kurzgesagt, stop messing with accessibility features.
        Fancy = not useful

        Still love you.

    • Jack Lopresti
      Jack Lopresti  1 hours back

      All stars are electricity connected which can only be saw with different wavelengths

      • Ryan Clark
        Ryan Clark  1 hours back

        WHAT. THE. FUCK.

        • rahul kumar
          rahul kumar  2 hours back


        • EP114587
          EP114587  2 hours back

          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  2 hours back

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

              • Crispy Nuggets
                Crispy Nuggets  2 hours back

                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  2 hours back

                      My penis is one of them

                      • Eddy Tjhia
                        Eddy Tjhia  3 hours back

                        single atom of strangelet hit a human, poof Zombie Apocalypse

                        • Siddharth Unova
                          Siddharth Unova  3 hours back

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

                          • Priyam Mitra
                            Priyam Mitra  3 hours back

                            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  3 hours back

                              Do you believe in god?

                              • James McFillin
                                James McFillin  4 hours back

                                Strange Matter:

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

                                • MARIO BROS PLUSH
                                  MARIO BROS PLUSH  4 hours back

                                  Are these theory's

                                  • Brayden Rankin
                                    Brayden Rankin  4 hours back

                                    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  4 hours back

                                      what the fuck

                                      • fricjo
                                        fricjo  4 hours back

                                        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  4 hours back

                                          No one:
                                          Kurzgesagt: LETS DEPRESS EVERYONE WITH SCIENCE !!

                                          • space human
                                            space human  4 hours back


                                            class: apollyon

                                            Description: strange bEan

                                          • Vincent 1234
                                            Vincent 1234  5 hours back

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

                                            • Victor
                                              Victor  5 hours back

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

                                              • Coconutszz
                                                Coconutszz  5 hours back

                                                Man science really reads like a bad fanfiction sometimes.

                                                • SungBen
                                                  SungBen  5 hours back

                                                  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  5 hours back

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

                                                    • AntSwift1
                                                      AntSwift1  6 hours back

                                                      Fuckin wierdos

                                                      • Otto von Bismarck
                                                        Otto von Bismarck  6 hours back

                                                        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  6 hours back

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

                                                          • Noah Ratajek
                                                            Noah Ratajek  7 hours back

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

                                                            • Loes Brijobhokun
                                                              Loes Brijobhokun  7 hours back

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

                                                              • Kristen Lopez
                                                                Kristen Lopez  7 hours back

                                                                Strange quarks decay into up and down quarks we are safe

                                                                • Sketched in Blood
                                                                  Sketched in Blood  7 hours back

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

                                                                  • Ehro
                                                                    Ehro  7 hours back

                                                                    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  8 hours back

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

                                                                      • Darwin Aguilero
                                                                        Darwin Aguilero  8 hours back

                                                                        *thanks personal mix playlist*

                                                                        • Woahexdeegg NEXIE
                                                                          Woahexdeegg NEXIE  8 hours back

                                                                          How to make an edgy teen want to go to space

                                                                          • Night corer
                                                                            Night corer  9 hours back

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

                                                                            • JoeNoshow27
                                                                              JoeNoshow27  9 hours back

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

                                                                              • Lucas Luka
                                                                                Lucas Luka  9 hours back

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

                                                                                • Sara
                                                                                  Sara  9 hours back

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

                                                                                  • Zypher Gameing
                                                                                    Zypher Gameing  9 hours back

                                                                                    What happens if a strangelet hit a human?

                                                                                    • JEŇÝK KOŇÝK
                                                                                      JEŇÝK KOŇÝK  9 hours back

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

                                                                                      • Tal Tamir
                                                                                        Tal Tamir  9 hours back

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

                                                                                        • Xactly !
                                                                                          Xactly !  9 hours back

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