Half the universe was missing... until now

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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



30 Tem 2020




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Subhamsekhar Panda
Subhamsekhar Panda 2 yıl önce
I love how beautifully presented his videos are.
Sosuk 2 yıl önce
Now I understand what my dog feels when I talk to him
PinguWithAnAxe 2 yıl önce
"A Quasar's luminosity can be thousands of times that of whole galaxies"
DvS Yıl önce
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!
Abhishek Prasad
Abhishek Prasad 2 yıl önce
I'm so happy to have received sufficient education to be able to understand at least some part of physics.
Ken Brunet
They say that if a missing person isn't found in the first 48 hours the chances decrease rapidly over time. Amazing they were able to find the other half of the baryons after all that time!
Holy Ravioli
Holy Ravioli 2 yıl önce
Neat, now in the future i can say, "Back in my day we could only see half the universe!"
Early Bird
Early Bird 2 yıl önce
Wow amazing, when you mentioned that lightning emits broad spectrum radio waves I had a flashback of when I was a kid tuning an old transistor radio to a frequency with just static. There happened to be a thunderstorm at that time and I could hear the pulses of radio emission from the lightning.
Huon Smith
Huon Smith 2 yıl önce
Watching this makes me amazed at how we can observe a simple phenomenon like redshift and somehow apply the knowledge to calculate the missing matter in the universe. Like damn, humans are really smart
NWN Yıl önce
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!
Heinz Kanein
Heinz Kanein 2 yıl önce
Great video,really enjoyed it. I can't believe how intricate these processes in nature are. It is absolutely mind-blowing how some scientists figure these things out. Please show more.
Magics Yıl önce
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%!
iScape Nak3d
iScape Nak3d 2 yıl önce
Scientists: "We can't find 50% of the matter in space"
Felipe C. D.
I can't even imagine the amout of effort to summarize this in 14min
Bo Bogus
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.
CatLikeThief Yıl önce
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?
Saint 2 yıl önce
No worries, there's still the question about where is and what is dark energy/matter. The 95% question.
Gary Schasteen
Gary Schasteen Yıl önce
Cool video! I really like how you explained the "how" behind the "what". You explained what (or where) the missing baryonic matter was, and the "how" behind the way they detected it (in a way that felt comprehensible): that is really cool and something I find unique about this video. Thanks for making and sharing!
Philip Fahy
Philip Fahy 2 yıl önce
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.
Wm Wellman
Fantastic explanation! I enjoy and look forward to your next subject. Wish I had more teachers that would have been this interesting. Thank you for taking the time to make these and please don’t every stop! Regards, Jim
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