Claudia was one of my professors at Portsmouth University. Can confirm she is an absolute delight to listen and learn from. She is also the one responsible for bolstering my confidence in mathematics so big thank you to her!

Dr. Is a Charming, informative, entertaining presenter!😊

Thanks a lot TheRi. Very informative content. 👍 👏

You are right, that's why Im here for her :)

Brilliant !

Quite large out there.

Fascinating!

Moar energy!!

It seems much more lyrical with an Italian accent.

ah i like this one :D

Interesting. This is a task (the modelling) where machine learning is a perfect tool. Thanks!

4:44 Ellyptical galaxies seem to be the 1sts formed after the big bang, said the doctor. I read they were formed by successive merges of smaller galaxies, is it a closed debat?

@cosmic.e

4 ай бұрын

It is an open debate, but it won't be for long. There is evidence both from dynamics and from elemental abundances in stars that elliptical galaxies must form very rapidly, and mostly at earlier times compared to spiral galaxies. However, the leading cosmological model, LCDM containing both dark energy and cold dark matter, requires ellipticals to be the younger objects, formed by "dry mergers" of spirals. This is unlikely (first shown by Daniel Thomas et al., 2005, including Claudia Maraston if I recall correctly; and more recently, Yan, Jerabkova, Kroupa, 2021, with many others in between). A recent review by Frebel & Ji (2023) nicely summarizes that at least for the Milky way (the merger/monolithic collapse stands also for spirals) most stars seem to have formed locally (in situ), with small contaminations from mergers. The community is rapidly converging to the understanding that the LCDM model, while promising at a surface level to explain the "cosmic concordance" (the fact that many independent observational probes point to the same cosmological parameters) is proving to be an incomplete, and possibly skewed, picture of cosmic evolution.

@AA_Warlok

4 ай бұрын

Science is never a closed debate!

As an Italian myself, a fascinating lecture I'd say, even though all those word-ending schwas in her pretty thick Italian accent were somewhat distracting at times

What happened to the Xmas lectures ?

@frogz

4 ай бұрын

didnt they upload them already? they are still up right?? i hope they didnt delete them, they were good this year

@boxelder9167

3 ай бұрын

Kind of ironic to have a Christmas lecture about trying to get the universe to come together without God. All we need is for the universe to be mostly filled with dark evidence that we can’t see and we can eliminate the need for the light of God that we can’t comprehend.

Is there a spherical galaxy in the universe? Or it is not possible.

@michaeldamolsen

4 ай бұрын

Your question is answered @4:37, not even 5 minutes into the video.

Sean Carol did a version on this same thing with nuclear astrophysicist Sanjana Curtis 😍

Lovely essayed cosmos lectures with a jungle of data tugged me infinitesmally further from antediluvian background. In the name of Aldebaran, give us more!

🐝

Maybe the soldiers filled the rockets with water to prevent them igniting in silos with lids that won't open. Self preservation. Not a bad idea if the lid won't open. ;-)

🌌 ✨🔭 👀 😃 👍

👍✌️🌍😊

Galaxis Is Quanta of Ouroboros, of the realms of the Infinite Potentials.

Anybody knows where to get an Kings's AssBurger 😂, Woouumnumnum

This Lecture would be even better if Miss Maraston was making a pizza pie :P

@biggityboggityboo8775

4 ай бұрын

A pizza is NOT a pie.

Seriously, Claudia? Comic Sans? Did you lose a bet?

The most awesome data is wasted if it’s analyzed with incorrect theories.

@evanherk

4 ай бұрын

How will you find out they're incorrect except by analyzing the data with them? Many theories have to pass review in order to either strengthen or discard them. That's how science works.

@DCGreenZone

4 ай бұрын

Math has been twisted into a pretzel trying to explain what is observed. I recommend Mel Acheson's recent video on charge separation.

@iteerrex8166

4 ай бұрын

@@DCGreenZone The term for that is mathemaGICS lol. Good example is QFT.

@iteerrex8166

4 ай бұрын

@@DCGreenZone With great respect to Feynman.

RI is scraping the bottom of the barrel.

@fktygglbtchbtch1384

4 ай бұрын

best if you not come back then.

@ac.creations

4 ай бұрын

Not even sure what this means, it's a free video. You don't need to watch

@subliminalvibes

4 ай бұрын

East Africa _IS_ the bottom of the barrel... 😎

@dosesandmimoses

4 ай бұрын

How so? That is, can you explain why you think this?

Lovely, but 8 struggle to understand her.

@michaeldamolsen

4 ай бұрын

Yes. that Portsmouth accent is difficult to follow.

@donc-m4900

4 ай бұрын

Gotta get those Brits to speak American.