Half the universe was missing... until now

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

[Michael-Hammerschmidt]

Physics: Solves a problem I had no idea existed.
Me: Hell yeah!

[LeoStaley]

"first we need to talk about lightning. I promise this is related"

Ah, that second sentence tells me I'm not on Vsauce.

[cascas]

1:44 Normal Astronomy: processes take millions of years

Big bang: *Gas gas gas, gotta step on the gas*

[dvs]

Just a personal note: makes me happy to see you & your son in the end. So inspired, so inspriring. Thank you for your patience and passion making all these videos!

[holyravioli]

Neat, now in the future i can say, "Back in my day we could only see half the universe!"

[Sosukz]

Now I understand what my dog feels when I talk to him

[cinemaclips]

Damn, This video encouraged me to read about the Lyman-alpha series but ended up learning the Bohr model of the atom, the Rydberg formula, the Lyman series, the balmer series and also the Peschen series. I'm currently learning about the Lagrangian of a spinors field which satisfies the Dirac equation. I can finally appreciate the beauty of the Lyman alpha forest. Thanks Veritasium

[FDovigo]

I can't even imagine the amout of effort to summarize this in 14min

I think i would have written a 2 hundred page book and just given up before been able to make such a precise video.

Edit due to the final phrase "we'll have to be content, with being right"
Wow... just chills bro

[_Diego_]

Me: "Ma! I can't find the other half of the known universe!"

Ma: "Did you check in the Warm-Hot Intergalactic Medium?!"

Me: "Yes ma! 🙄"

Ma: "If I go down there and find the rest of the baryonic matter, I swear! 😡"

Me: 😰😱😭

[ombhatt]

Last time I was this early, half the Universe was still missing.

[catlikethief]

This kinda blows my mind. It takes some genius ingenuity for scientist to do what they've done in every field for specifically the last 20 years. But Astronomy and physics are making ridiculously impressive strides, which only turns into more questions to be asked lol. When will it ever end?

[JithinJacob]

I love the Achievement Unlocked trophy at 1:50
Hahahaha

[pvic]

Varitasium "Lets talk about lightening.... i promise its related"
Vsauce: "Ill talk about random stuff.. you find out how its related"
I love both of these guys lol

[nicholasiverson]

"Regular baryonic matter" that's rich coming from the 5%

[tommeakin]

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

[qzbnyv]

36 year old me wondering what life would have been like now if I had had Derek & Raquel as parents, making Kiwico sets together and learning about real science from both of my parents. Those boys better not mess this opportunity up!

[philipfahy]

The difference between scientists and non-scientists was something I had to learn the hard way coming out of college. I would correct people or provide additional information, thinking that it was interesting and would lead to discussion or a better understanding. Most people just found it as an attack on their understanding or an attempt to correct them to show off. Not really my intent. I generally like it when I'm corrected because it means something I thought I understood could be described better or was misleading.

[AlessandroRodriguez]

me: "Half of the Universe is missing"

my daughter: Did you look under the sofa?

[bobogus]

I find it amazing that "warm-hot" (100, 000K–10, 000, 000K) refers to the unfathomably hot temperature range between about 180, 000°F and 18, 000, 000°F.

[magics]

This was absolutely my favorite of your videos! So many amazing analysis and thesis connected together with a galactic chance of something not even understood that solved a different problem! Look forward to hearing when scientists find out something so interesting as what causes these bursts of radio waves. Also looking forward to more info on the other 95%!