Katie Mack: Ever wondered where the first ever stars came from? www.sciencefocus.com/comment/jame... 🔭🧪

Ever wondered where the first ever stars came from? www.sciencefocus.com/comment/jame... 🔭🧪

Here’s how we're understanding the origins of the first stars in the Universewww.sciencefocus.com The James Webb Space Telescope is helping us learn more about the formation of the earliest stars in the Universe.

I wonder how old the oldest star is. Not the oldest we know of -- the actual, very oldest.

I wonder that too! If any very low-mass, long-lived stars formed in the first generation, there could be stars shining today that are currently around 13.6 billion years old. But it’s possible (likely?) low-mass stars only formed in the second (or later) generation

When a mommy star and a daddy star... Oh crap. That doesn't work.

Some can create something new between them! ...so can D+D, M+M, non-binary stars, etc. ... I mean binary stars of whatever variety comes with the territory... Okay trinary, quadrinary... Look stars can come together to create something new and beautiful. ... Or nightmare darkness that consumes all

I've always wondered what is *outside* of our universe. The Universe is expanding, but what is it displacing as it expands? Or is that analogy itself nonsensical?

This might help! bsky.app/profile/astr...

The first episode of my new video series, Cosmology 101, is out now! This one is about cosmic expansion. Check it out and subscribe to the Perimeter Institute’s YouTube channel to get the whole series! youtu.be/7GC8XOKwRpM?... #Cosmology101

Expansion of the Universe Explained | Cosmology 101 Episode 1youtu.be In this episode of Cosmology 101, we dive into the concept of an expanding universe. From the first moments of the Big Bang, our cosmos has been stretching i...

"You're not expanding into anything... you're just getting less dense". Lol Thanks, this is what i love about this place. I ask a noob question, and get a reply from an expert. :)

Thanks I really enjoyed and learned from that!

I'm super geeking out due to this video! 😁 Gotta love science!! 😊

cosmic expansion recently became my metaphor for rubato in music.

Yes actually...

Thanks ! I learned about the necessity of cooling the gas for the star to exist.

The ad that went with the article about the first lights in the universe:

I did read a book about it, adapted from Hebrew, but it had large gaps.

Ack! I was especially intrigued by this graf at the beginning but it kinda felt like you didn't come back to explaining how the subsequent model you described might need to be modified.

I guess I didn’t get deep into that but the gist is the processes must have been unfamiliar ones — some that would have occurred for stars with a different chemical makeup than modern stars

I like the idea of old stars scolding the younger, modern stars.

Haven’t read the article yet - because I have to get out of bed, dress, feed the dogs and login to work. Maybe related to this: I was recently asked: “Are there any stars that will have extinguished their light but that we still see their light?”

Genuinly read that as "worst ever stars", and realised i need to go to bed

More important, what happened to the first stars?

💥, presumably

Iirc early stars were mostly bigger and hence short-lived but there are still some pretty early red dwarfs around? Nothing yet observed is Gen3 tho, just Gen2. (I'm not an astronomer tho)

JWST has been nothing less than mind blowing; continuing to rewrite our understanding of the universe. Every article regarding it is just a real treat to read as a space junkie.

I could inject some random Xtian explanation here, but as I detest those like most do, yes, I am understandably curious.

Outer space?

T-rex was Cretaceous, yes? I can't wait till we find the equivalent of a Palaeocene star, buuuut I'll probably be dead before that Probably all of us will

Can you clarify — was the carbon expected or not?

Not at the levels detected

🎢

You know me too well.

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