Half the universe was missing... until now

Half of the ordinary baryonic matter has been tough to find but Fast Radio Bursts made it possible to detect the WHIM. Thanks to Kiwico for sponsoring this video! For 20% off go to kiwico.com/veritasium or use code VERITASIUM at checkout.
Special thanks to Prof. Geraint Lewis ve42.co/gfl
Nature paper: A census of baryons in the Universe from localized fast radio bursts
Research and Writing by Max Levy, Derek Muller and Jonny Hyman
Editing, Animations, Audio Mix & Mastering by Jonny Hyman
Filmed by Raquel Nuno
Thumbnail by Ignat Berbeci
Music from Epidemic Sound epidemicsound.com


  • Brian Kleinschmidt
    Brian Kleinschmidt11 orë më parë

    The scientist were certain it was there, and lo and behold they found exactly what they were looking for. Science is complete. BTW what's a barryon?

  • Kishor Kumar
    Kishor Kumar19 orë më parë

    That sound of *whistler* actually seems to me as the intro music of veritasium. Anyone else noticed?

  • Kishor Kumar
    Kishor Kumar19 orë më parë

    Just imagine, being there to witness thw universe right 20 mins after the big bang and living(infinite% theoretically) afterwards. It would be gorgeous.

  • Sharika Pradeep
    Sharika PradeepDitë më parë

    You are simply superbb

  • Karyll Hyacinthe
    Karyll HyacintheDitë më parë

    I didn't know I needed to know the sound of lightning on the other side of the globe.

  • Pola & Tiger
    Pola & TigerDitë më parë

    It's not real. Don't waste your time! Even if it was. It would be useless. Don't waste your time! I said it twice.

  • Kishlay Verma
    Kishlay Verma3 ditë më parë

    Well it depends at what time avengers endgame releases on other parts of the universe.

  • Erik de Jong
    Erik de Jong3 ditë më parë

    I don't understand how the light is less red shifted because the hydrogen is closer to us, can someone clarify?

  • Max Rev
    Max Rev3 ditë më parë

    From jr studio

  • jafer sidhiq
    jafer sidhiq3 ditë më parë

    JR studio കണ്ടിട്ട് വരുന്നവർ ഒന്ന് like അടിക്കാമോ 😍

    MR. YOUTUBER4 ditë më parë

    Jr studio

  • nancy joseph
    nancy joseph4 ditë më parë

    Who all here from JR studeos, Hit like...MALAYALI'S HERE...??

  • Mixed Video
    Mixed Video4 ditë më parë

    മലയാളികൾ വരൂ നമ്മുടെ jr ന്റെ മെമ്പേഴ്‌സ്

  • nancy joseph

    nancy joseph

    4 ditë më parë

    Hi... From JR studeos

  • Maks 2.0
    Maks 2.04 ditë më parë

    Why not consider the processes occurring in a quantum vacuum as a source of dark matter/energy? Hoking showed the possibility of gravity influencing quantum fluctuations near black holes. Galaxy will have a gravitational effect on the surrounding space and, therefore, can affect the processes of the quantum vacuum, increasing the time each individual vacuum fluctuations, which in turn can cause a gravitational anomaly, which apparently is the cause of the dark matter halo around galaxies, and can be the cause of other as yet unexplained phenomena On this subject, recently published an article where everything is described in pretty simple language. Journal "Internauka" No. 1 (177) part 2, 2021, p. 45._

  • Martin willemse
    Martin willemse5 ditë më parë

    Then we also have that the big bang still seems to be accelerating, which is inexplicable, with shrinking atoms it is that if something shrinks it also goes faster, then our clock will run faster, due to the reduction in scale and the shrinkage also goes faster. Then we have redshift bands, which cannot be explained just like that with the big bang, with shrinking atoms, you can think that structures in the atoms evolve and influence the shrinkage, those are structures that we cannot yet observe, but their influence via the redshift bands.

  • Martin willemse
    Martin willemse5 ditë më parë

    When galaxies move away from us you get a redshift, when our atoms shrink you get redshift, how do they know that the big bang theory is the right theory, there are so many problems with the big bang theory, like double distance double redshift, that does not seem to be compatible with the big bang theory because of the following if we take the light from a galaxy with 10% redshift, that just goes into the telescope at the speed of light and if we let that light shine through to another galaxy with 10% redshift, then when it comes here we first have 90 of the original 100 waves per unit of time, then when it comes to the next system, 81 of the 90 waves remain, if we are here from Earth as well. sending a beam of light, 90 of the 100 waves remain and that double distance does not add up to a double redshift. then we have the big bang remnants that are 400,000 years old as we can now observe them and that covers the entire starry sky 13.4 billion light years away, of course that is not possible, the big bang remnants were 335,000 light years away when that radiation was that we can now observe, that is because of the speed of 97.5% of the speed of light and it took that light forty times as long, because the source that emitted the radiation had such a high speed and the speed of light is not distance measure, but a time that the light has passed it, you can calculate that it is very far away now, but we cannot see that far, we can only see 3.5 billion light years away and the most visible objects are the galaxies that have 50% redshift and are a little less than 3.5 billion light years away. so in other words, the perspective in space is slightly different than we are used to. If we then take the photo of the space telescope Hubble with the ultra deep field photo and there is no strange perspective to be seen and no letter is dirty as if there were no strange perspective, that would not be compatible with the big bang theory. Now if we take the space of galaxies with 50% redshift, where the big bang is halfway, then there should be 8 times as much matter, we have never heard of that as if it is not there, it is not. to be reconciled with the big bang theory. So how can the big bang theory still have a right to exist. When the Belgian priest came up with the big bang theory a hundred years ago, what was the evidence that it was not shrinking atoms that caused the redshift?

  • Andra
    Andra5 ditë më parë

    For people with epilepsy yes theres flashing lights

  • Guy Friendly
    Guy Friendly5 ditë më parë

    I feel sorry for the PSU on that computer simulating the entire universe.

  • Mwsqz
    Mwsqz6 ditë më parë

    08:50 what i learned from this image is that earth could be a sentient being communicating trough its emf with other emfs in range.

  • Lumalee


    3 ditë më parë


  • Daddy Dinosaur
    Daddy Dinosaur6 ditë më parë

    Interesting! Now just got to find the other 95% :D

  • Lumalee


    3 ditë më parë

    We already know it. Its dark matter and dark energy

  • Kakarot UI
    Kakarot UI7 ditë më parë

    4:51 flashbang

  • Julianna H ꨄ
    Julianna H ꨄ7 ditë më parë

    I speak English, but sometimes it feels like he's not.

  • Paul S
    Paul S7 ditë më parë

    and then a monkey comes along and throws a wrench in the works, leaving us scratching our heads again

  • Fractal
    Fractal8 ditë më parë

    This is very WHIMsical.

  • Up_Graded
    Up_Graded8 ditë më parë

    I like how he said STEM as Steam

  • John Lynch
    John Lynch8 ditë më parë

    12:15 hey buddy if there's no left THERE is no RIGHT.

  • John Lynch
    John Lynch8 ditë më parë

    12:11 so in a sense you didn't get what you WANTED but your HAPPY ANYWAY , BECAUSE YOU got what you were expecting. That ; to me...sounds very much LIKE FAITH. I love your videos P.s. I say you didnt get what you wanted because you stated that would be better if the measured result of any scientific study was 'different' than expected.

  • Beulah West
    Beulah West9 ditë më parë

    The sick yard logistically use because passbook consequently admit into a icy michelle. equable, dashing pen

  • Linus Franzoni
    Linus Franzoni9 ditë më parë

    The material australian endoscopically risk because panties cumulatively spill down a safe blouse. absent, flawless author

  • Jacques de Bruyn
    Jacques de Bruyn9 ditë më parë

    Big bang has been debunked so many times and people still cling to it like crazy🤣 it's like watching idiots argue that there aren't peanuts in peanut butter

  • Lumalee


    3 ditë më parë

    It hasnt been debunked, its been PROVED. You think some magic man created the universe? Yeah that seems likely

  • Richard Harbeson
    Richard Harbeson10 ditë më parë

    Just a FYI... We didn't get to where we are at now from the "big bang" rocks blowing up, more and more scientists are believing in a creator...

  • Lumalee


    3 ditë më parë

    Lol no, a magic man did not make the universe, and scientists know this because they have scientifically proven the big banh

  • Gregory Prusak
    Gregory Prusak10 ditë më parë

    Not to give away my advanced years, but I JUST HAVE TO know if Boards of Canada is floating around underneath the beginning of this video....

  • Luis YL
    Luis YL10 ditë më parë

    Omg thanks for making this video

  • Eric Brown
    Eric Brown11 ditë më parë

    There is no half or whole universe, it goes on forever...

  • Lumalee


    3 ditë më parë

    Then you clearly dont understand what he is saying

  • Pedro Pantaleão
    Pedro Pantaleão11 ditë më parë

    I didn't understand a single thing about the light thing, but I can say I was very amused

  • Hansolovz Z
    Hansolovz Z11 ditë më parë

    there is way much more than half.

  • Hansolovz Z

    Hansolovz Z

    3 ditë më parë

    I was way to drunk to even remember that I commented this.

  • Hansolovz Z

    Hansolovz Z

    3 ditë më parë

    @Lumaleemaybe i do maybe I don’t, I would say the later. Because I didn’t really listen, it’s the new normal.

  • Lumalee


    3 ditë më parë

    You clearly dont understand what he is staying

  • RobTheGeek
    RobTheGeek11 ditë më parë

    How did I guess it was lightning?

  • DISOP tv
    DISOP tv11 ditë më parë

    It's funny how people talk about theories as if they are fact.

  • Lumalee


    3 ditë më parë

    What theory? What are you talking about? Most of what he is saying IS fact

  • Jonte on game
    Jonte on game11 ditë më parë

    that super cool. and it was uplodel one day before my birthday

  • Arif Munshi
    Arif Munshi12 ditë më parë

    But how did we turn from hydrogen into living beings?

  • Lumalee


    3 ditë më parë

    We didnt

  • AFS Salim
    AFS Salim12 ditë më parë


  • BluePqtriot228
    BluePqtriot22812 ditë më parë

    After watching wandavision: 3:07 me: OMG CMBR ITS REAL

  • HDD Neptunia
    HDD Neptunia12 ditë më parë

    What about outside of the observable universe. Bit of a weird feeling knowing we've seen all 5% of baryonic matter, and there's nothing else out there

  • Atticus Lionheart
    Atticus Lionheart12 ditë më parë

    The overwrought periodical partially detect because vacation phylogenitically measure between a regular comb. spotless, erect drain

  • Seth N.
    Seth N.12 ditë më parë

    Scientists are so incredibly smart and yet there are so many secrets still left to be found...we know so little about some things ......yet normal everyday people now know stuff that only 1-2 people knew just 50-100 years ago

  • Patfettx
    Patfettx12 ditë më parë

    5%, that's how much of this video I understood.

  • Federico Barbanera
    Federico Barbanera12 ditë më parë

    In theory, positioning itself on the edge of the event horizon, due to the attraction the light moves concentrically, so you can see your neck looking forward. By the same principle, a pulse of light can be measured without bounce.

  • George Treichel
    George Treichel13 ditë më parë

    Ok I seen your video, it’s cool to see but , you talk about the Big Bang a lot . Here’s a good question I would like for you or anyone to explain. If light travels so fast and and the universe is expanding at the same speed to a point where every minute a star or galaxy’s is going out of are Site How can anyone know where the middle is and how much of the universe is gone to the point where can never see it again... and if it’s gone how would we ever know it was there in the first place...?????

  • Lumalee


    3 ditë më parë

    The universe does not expand at the speed of light.

  • George Treichel

    George Treichel

    13 ditë më parë

    Would love to hear back in a video or just write

  • Jim
    Jim13 ditë më parë

    How can a volume of space with only 1 - 10 baryons per cubic meter have a temperature of 100,000 - 10,000,000 K? Those are some pretty energetic baryons! A cubic meter of space with no baryonic particles at all has no temperature (or just the temperature of the CMB), so cubic meters of intergalactic space with such huge temperatures seem counterintuitive.

  • chetan patil
    chetan patil13 ditë më parë

    he says @1.40 as unstable and then says @2.42 as stable... which one is correct 🤔🤔

  • DeadNerd Gaming
    DeadNerd Gaming13 ditë më parë

    I wonder how much of the universe’s mass is located inside or is accounted for by black holes?

  • Prongs


    10 ditë më parë

    Weren't you paying attention to the video? Less than 1% of it. (20% of the 5% baryonic matter.)

  • Enpsychlodelica
    Enpsychlodelica13 ditë më parë

    Cant prove there was ANY bang or something like that... people will call believing in genesis from the Bible CRAZY and not real but they'll go re imagine what they wrote thousands of years ago just to keep you from seeing the truth. It cannot be seen with eyes.. it cannot be touched by taste or feel... you all are sad sad creatures

  • Lumalee


    3 ditë më parë

    Lol sorry but a magic man did not create the universe. The big bang HAS been measured, and proven.

  • Noctis Lucis
    Noctis Lucis13 ditë më parë

    That pretty cool, universe is still vast and likely far bigger than the observable universe.

  • RyanBeatbox
    RyanBeatbox13 ditë më parë

    Flashing light warning would be nice, next time.

  • Cristina Muresan
    Cristina Muresan14 ditë më parë

    what if the short radio blast thingy was aliens shooting a super weapon at earth??? LOL

  • Swing Low Sweet Chariots
    Swing Low Sweet Chariots14 ditë më parë

    if those particles are that hot, how come they don't give of visible light? or are they between us and other objects and thus blocked?

  • Lumalee


    3 ditë më parë

    Heat does not equal light

  • player2030
    player203014 ditë më parë

    I love science, it gives me an unfair glimpse of how the universe is so big that we will never finish understanding it but proves how great God is....

  • Shogo 昇剛
    Shogo 昇剛14 ditë më parë

    You could say they discovered all the baryons on a WHIM of the universe.

  • dejosserman
    dejosserman14 ditë më parë

    quasar sounds like some french mispronounced dish

  • isa butchers
    isa butchers15 ditë më parë

    What I thought u meant by half the universe was missing was that we can’t find all the antimatter that should be as abundant as matter but just isn’t

  • Jeremy Delgado
    Jeremy Delgado15 ditë më parë

    The thoughtful pastor occasionally announce because fifth oppositely love since a right yam. lazy, shocking tailor

  • kylejiahsmith
    kylejiahsmith15 ditë më parë

    Is the flash made from Barry-onic matter?

  • quecisneros
    quecisneros15 ditë më parë

    Thank you! Wonderful explanation.

  • Lee Shallis
    Lee Shallis15 ditë më parë

    I love how the description of the big bang aligns perfectly with the first line of genesis "In the beginning God said let there be light"

  • Lee Shallis

    Lee Shallis

    3 ditë më parë

    @Lumalee You still think God a mere man? Fool, that's like calling the void mere matter

  • Lumalee


    3 ditë më parë

    Yeah a magic man did not build the universe lol

  • midlander4


    14 ditë më parë

    It's a shame the rest of Genesis gets it so spectacularly wrong.

  • abc def
    abc def15 ditë më parë

    The intergalactic dryer at work. The universe needed a little drying to be ready. Just like when drying your clothes, it's no more a pair of socks, it's a sock, the other one's missing. Somewhere an alien wonders where it went. I pressume we're about to get a visit. Famous first words: It's a little embarassing, but the word on the Milkyway suggests you've found the other half... We've been looking for millions of years..."

  • WorgenatorWoW
    WorgenatorWoW15 ditë më parë

    I can't help but to be disappointed when he doesn't follow up the "hey" in the outro with "Vsauce, Michael here".

  • cocortencio
    cocortencio15 ditë më parë

    There is no big bang to begin with its just is

  • Lumalee


    3 ditë më parë

    Uh no it came from the big bang

  • Andries van Tonder
    Andries van Tonder15 ditë më parë

    Your title should read 97.5% of the universe was missing until now. Now it's only 95%, as there's still no direct evidence for dark energy or dark matter

  • Lumalee


    3 ditë më parë

    There IS evidence and proof of it

  • Kirk Hunter
    Kirk Hunter15 ditë më parë

    How can anyone know half a universe is missing? remember before the Hubble telescope astronomers had no idea how many countless galaxies were out there? They still don't know, the haven't mapped the entire sky with the Hubble deep field, just a tiny portion. They have no idea how many Galaxies are out there, some are so far away they cannot and will not ever be observed. Are they seriously saying they have weighed the observable universe? Any supposed mass missing can be accounted for by saying "it's there but it's too far to see it". Like I know Australia is there but cannot see it from the UK.

  • Lumalee


    3 ditë më parë

    You clearly didnt understand what he's saying

  • Глеб Сальманов
    Глеб Сальманов16 ditë më parë

    "Fast radio signals from outer space with unknown origin" - I dunno about you, but that sounds like aliens to me

  • Lumalee


    3 ditë më parë


  • know-it-all King
    know-it-all King16 ditë më parë

    Start thinking outside the box and you'll figure it out

  • Lumalee


    3 ditë më parë

    Oh yeah? You think you know?

  • Florida Dad
    Florida Dad16 ditë më parë

    Good thing I listened to Darcy on WandaVision first.

  • Tony Ruiz
    Tony Ruiz16 ditë më parë

    Omg wtf is this dude talking about...wrap it up!!!

  • Pete Godard
    Pete Godard16 ditë më parë

    20 minutes after the big bang? Really. You can measure that? I mean, its only the beginning of time.

  • Lumalee


    3 ditë më parë

    Yeah, they CAN measure that. Or estimate

  • Tim Friday
    Tim Friday16 ditë më parë

    Strings of the string theory? ;)

  • E
    E16 ditë më parë

    It’s in Nebraska

  • Marius P
    Marius P16 ditë më parë

    Doesn't p-p chain synthesize deuterium?

  • The Curious Noob
    The Curious Noob17 ditë më parë

    I just made the perfect turkey and cheese sandwich. The universe is aligned

  • Lumalee


    3 ditë më parë

    @programming With Logic turkey is delicious

  • programming With Logic

    programming With Logic

    11 ditë më parë

    Go buy a chicken, what's wrong with you

  • Alan Carnell
    Alan Carnell17 ditë më parë

    It was under the sink, wasn't it?

  • jamcdonald120
    jamcdonald12017 ditë më parë

    Kiwi co, now shipping you the missing half of the universe in a box!

  • Bell Rinn
    Bell Rinn17 ditë më parë

    Damn... It's like pixels in our computers (but like millions and millions of times smaller).. try to science something in the macro world...

  • Tom Meakin
    Tom Meakin17 ditë më parë

    1:28 I have no history of epilepsy, but that bit was seriously unpleasant to look at. My eyes just started rapidly blinking lol

  • Samuel Mason

    Samuel Mason

    13 ditë më parë

    I literally googled: Can flashing lights cause a seizure with no history of epilepsy.

  • Abdurahman Amat
    Abdurahman Amat17 ditë më parë

    @Veritasium When you said at 1:22 "as the univers expanded ....", what did you mean by saying expanded ?? I mean, if that is the univers, then where it can be expand into ? into the other universe(s) or where ... ? or does the universe in your explanation have some specific definition .... as always nice to watch your videos, thanks!

  • Lumalee


    3 ditë më parë

    The universe is expanding, as in moving farther apart

  • Doug Laidlaw
    Doug Laidlaw18 ditë më parë

    The Univese is full of mysteries, but they attract the attention only of nuclear scientists, who aren't interested in fixing their own planet first.

  • Tianyou Li
    Tianyou Li18 ditë më parë

    I'm an English learner and I learn English through this channel!

  • Doug Laidlaw
    Doug Laidlaw18 ditë më parë

    "Luight emitted by black holes in quasars?" I thought that the gravity in black holes was so intense that even light cannot escape, hence the epithet "black"? Blind one's viewers with science; then they cannot think up a reply quickly enough.

  • Oilicec Otos
    Oilicec Otos18 ditë më parë

    What if the universe is a cell in a living being? Or the Big Bang was really sperm fertilizing an egg?

  • Lan
    Lan18 ditë më parë

    The radio bursts themselves are a fascinating story. Imagine the magnitude of an event that could create the energy for one of these massive bursts.

  • abc def

    abc def

    15 ditë më parë

    Buritos at a large scale and someone saying: Man that was a big one..! I need a cigarette. Then lighting the smoke?

  • Ryan Linden
    Ryan Linden18 ditë më parë


  • Rod Langlands
    Rod Langlands18 ditë më parë

    Lots of places to hide out there😀

  • space Rocks
    space Rocks18 ditë më parë

    I di

  • Ilya Liviz
    Ilya Liviz18 ditë më parë

    So cool; I agree, being proved wrong is exciting, inter alia, it is a sign we are learning something new.

  • cc4046
    cc404618 ditë më parë

    What about all the matter whose light will never reach us? What percentage is beyond the observable universe?

    J2 RIVER FISHING18 ditë më parë

    In the begining GOD

  • Lumalee


    3 ditë më parë

    Lol no. Magic man did not create the universe. Im an athiest

  • Touchofgrey53
    Touchofgrey5318 ditë më parë

    What existed before the Big Bang? I have a hard time believing that all matter now in existence derived from an infinitely small single point! I don't care how densely you think it was "packed" it is impossible! They introduced this theory because they are unable to up with anything else that makes sense! Scientists = Big guessers!

  • John Dix
    John Dix19 ditë më parë

    New title proposal: "What English language sounds like to Chinese people"

  • Isaac Roberts
    Isaac Roberts19 ditë më parë

    Is that whistler the Veritasium intro?

  • WatchMeSayStuff
    WatchMeSayStuff19 ditë më parë

    The universe is like a bathtub full of grit.

  • Edgar Marenales
    Edgar Marenales19 ditë më parë

    what about the non visible universe? we can see and measure a limited distance in light years , How can any measurement be trusted when we have an incomplete picture of what is out of sight. We cant even say how big the Universe really is . I dont know , I get the feeling that a lot of presumptions are taken place.

  • N04h _002
    N04h _00219 ditë më parë

    It was just rendering in, duh 🙄

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