Navigate Select ESC Close

Did JWST Finally Find First Stars in the Universe?

2025-11-13 Science & Technology
41.1k
4.5k
275
Anton Petrov
Anton Petrov
1.6m subscribers

Evidence Supports Discovery of Population III Stars in LAP1-B Galaxy

Researchers potentially identified the chemically primitive Population III stars—the universe's first—in the distant galaxy LAP1-B. This exciting observation links the Big Bang remnants directly to the chemically enriched cosmos we see today.

Short Summary

  • JWST observed the ultra-faint dwarf galaxy LAP1-B, magnified by gravitational lensing, providing compelling evidence for Pop III stars.
  • The galaxy exhibits extreme chemical primitiveness, marked by very low oxygen abundance and an elevated carbon-to-oxygen ratio, matching theoretical predictions.
  • Contradictory kinematic data suggests either massive dark matter dominance or rapid gas outflow driven by intense stellar winds from these first stars.
  • Confirmation solidifies our understanding of how stellar evolution began, bridging the gap between the early universe and modern star formation.

This summary details a landmark JWST discovery concerning the LAP1-B galaxy, which harbors characteristics strongly suggesting the presence of Population III stars. Analyzing these features—from chemical composition to gas dynamics—helps connect the earliest epochs of star formation with the composition of the contemporary universe.

Unlock all features

FREE: Get instant access to 10 AI summaries, chats, or transcripts per day.

Description

Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath (Unreleased videos, extra footage, DMs, no ads) Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Get a Wonderful Person Tee: https://teespring.com/stores/whatdamath More cool designs are on Amazon: https://amzn.to/3QFIrFX Hello and welcome! My name is Anton and in this video, we will talk about new evidence about Population III stars - first stars in the universe Links: https://arxiv.org/pdf/2508.03842 https://arxiv.org/pdf/2506.11846 Previous videos: https://www.youtube.com/watch?v=Vzm0bN5ZRro https://www.youtube.com/watch?v=V21YRa5Sy9M https://www.youtube.com/watch?v=P9o3G8u-1BE Credits: Sand et al., 2022. 0:00 Population III stars - first starts in the universe 2:30 LAP1-B Galaxy evidence 4:20 Predictions about what they should be 5:00 What this galaxy is and what was found 8:25 Surprise from the James Webb 9:10 Why is this galaxy so strange? 11:02 Exactly as predicted? 12:00 What this means and why this is important 13:30 Conclusions Enjoy and please subscribe Bitcoin/Ethereum to spare? Donate them here to help this channel grow! bc1qnkl3nk0zt7w0xzrgur9pnkcduj7a3xxllcn7d4 or ETH: 0x60f088B10b03115405d313f964BeA93eF0Bd3DbF Thank you to all Patreon supporters of this channel Special thanks also goes to all the wonderful supporters of the channel through YouTube Memberships Licenses used: https://creativecommons.org/licenses/by/4.0/ and relevant Creative Commons licenses

Top Comments (10)

@arctic_haze 2025-11-13

This is something I have been waiting for since I started to be interested to astrophysics as a teenager. One of the reasons I decided to study physics. At the time, I expected some of the Population 3 stars to be present in the Milky Way. I had no idea they were all so giant that they that they went supernova within a short time.

150 13 replies
@PaulThronson 2025-11-13

I like to think about how amazingly lucky we are to be alive, that people evolved at all and how much we know as a species and how much of that we have access to

86 39 replies
@asimlerchick 2025-11-13

My night isn’t complete without a video from Anton!

75 6 replies
@MarigoldDragon 2025-11-13

commenting to help the algo, Hello wonderful people!

30 3 replies
@jimcurtis9052 2025-11-13

Wonderful as always Anton. Thank you. ☺😄🙂

28 1 replies
@MariaRobinson-u9w 2025-11-14

I am sad to think about Anton being sad! Thank you for another wonderful video

23 1 replies
@briankleinschmidt3664 2025-11-13

Anton, You are the biggest star in my sky! 🤩🤩🤩

8
@stevenkarnisky411 2025-11-14

If verified, this is a great discovery! Getting closer to the big bang! Thank you for bringing it to us, Anton.

5
@DavidMcGuizz 2025-11-14

When I am depressed or sad I just watch an Anton video

3
@Reiman33 2025-11-15

I honestly thought we would never find population 3 stars. This is great

1

Unlock the Data Inside
Turn Videos into Knowledge

  • Get FREE 10/day: transcripts, summaries, chats
  • Chat with videos, export text & PDF
  • $1 free API credit for RAG, chatbots & research

Free forever plan • All features unlocked

App screenshot