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Comet 3I/ATLAS Turned Green But We Don't Know Why + Other Updates

2025-09-30 Science & Technology
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Anton Petrov
Anton Petrov
1.6m subscribers

Recent Scientific Updates Reveal 3I/ATLAS Comet’s Chemical and Physical Anomalies

Analyze breakthrough observations detailing Comet 3I/ATLAS’s unusual CO2 enrichment, missing dicarbon, puzzling green hue, and unique polarization suggesting an origin far outside our solar system.

Short Summary

  • Determine the comet's early activity is explained by an extreme 7.6:1 carbon dioxide to water ratio, differing greatly from local comets.
  • Identify a major chemical contradiction: the comet appears green but spectroscopic data shows no expected dicarbon (C2).
  • Observe unique polarization and rapid stylistic evolution (red to white coloration) that points toward a bizarre surface structure or ancient origin.
  • Upcoming analysis of a solar coronal mass ejection impact promises new insights into how interstellar ices behave under extreme radiation.

This report synthesizes recent scientific findings from September 2025 regarding the interstellar visitor 3I/ATLAS. Scientists are actively revising initial assumptions based on JWST and Very Large Telescope data, confirming this object is physically and chemically unlike anything previously studied in the solar system. Understanding these anomalies is crucial before the comet becomes temporarily obscured.

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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 recent updates about the comet 3I/ATLAS that are based on legit scientific findings and not speculations or guesswork Links: https://arxiv.org/abs/2508.18382 https://articles.adsabs.harvard.edu//full/1994ApJ...436..885K/0000889.000.html https://arxiv.org/pdf/2509.07678 https://arxiv.org/pdf/2508.18382 https://arxiv.org/pdf/2509.05181 https://arxiv.org/pdf/2509.05562 https://arxiv.org/pdf/2509.07678 https://arxiv.org/pdf/2509.08792 https://arxiv.org/pdf/2508.18209 https://arxiv.org/pdf/2509.02813 https://arxiv.org/pdf/2509.01647 https://www.eurekalert.org/news-releases/1098124 https://www.swri.org/newsroom/press-releases/swri-proposed-mission-could-encounter-explore-future-interstellar-comet-3i-atlas-close Previous updates: https://youtu.be/arOgYkzMlp0 https://youtu.be/IRAQFWnY6uI https://youtu.be/21HSmydkxaE 0:00 3I/ATLAS Updates! 1:25 Coma and tail discoveries 3:30 Composition and surface is strange 5:30 No dicarbon found, this matters 6:10 It's green! But why though? 7:00 Media hype is wrong again 8:25 Polarization strangeness 9:20 Plutoid chunks 10:00 Where did this come from and how old is it? 11:05 Shift in the color profile 11:50 Collision with a coronal mass ejection 12:30 What's next? #3iatlas #comet #science 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 Credit: NASA, ESA, and J. Olmsted and F. Summers (STScI) NOIRLab https://www.youtube.com/watch?v=7gMxDO0j3J4 Davidjessop CC BY-SA 4.0 https://en.wikipedia.org/wiki/Polarization_(waves)#/media/File:Wave_Polarisation.gif Michael Jäger/Gerald Rhemann  David Jewitt/NASA/ESA/Space Telescope Science Institute Miguel R. Alarcon, Miquel Serra-Ricart, Javier Licandro, Sergio Guerra Arencibia, Ignacio Ruiz Cejudo, and Ignacio Trujillo Alessandro Bianconi CC BY SA 2.0 https://commons.wikimedia.org/wiki/File:C2022_E3_%28ZTF%29-_Alessandro_Bianconi.png Licenses used: https://creativecommons.org/licenses/by/4.0/ and relevant Creative Commons licenses

Top Comments (10)

@darknutgaming5510 2025-09-30

Sometimes I just click the video to hear I’m a wonderful person.

1.2k 95 replies
@whatdamath 2025-09-30

Additional notes: media claimed that the comet was very massive, more massive than assumed and that it its nucleus was bigger than previously believed. Both claims are incorrect as of October, 2025 The nucleus is quite average at 0.32 to 5.6 km (uncertainty due to coma that's 700,000 km across) and the current mass of the comet is unknown and difficult to establish for the same reasons - too much dust obscuring the view More updates once we find out what happened after the coronal mass ejection impact!

484 120 replies
@Luke_Himself 2025-10-01

I hope we exist in the timeline where at some point, Anton says the words .."It IS Aliens"

415 43 replies
@mulletgiraffe 2025-10-01

I've been skipping any videos about 3I/ATLAS because of all the misinformation, but when I saw that you covered the subject I knew I'd finally learn something.

401 39 replies
@didi0100 2025-10-01

Thank you Anton . No dramatics , no hype , no out there theories . Just honest information.

195 9 replies
@TheCarGoru 2025-10-03

3i atlas + non ai video = click. I’m so happy to hear a human talk about this. First time viewer.

113 5 replies
@JeppyBiscuits 2025-10-02

Anton is probably one of the few people who's not trying to turn this comet into a sci-fi movie. Thank you Anton for delivering facts about 3I-Atlas.

99 12 replies
@connorchan2614 2025-10-01

In a world of a ton of AI, I am glad we still have Anton

59 1 replies
@flamdango99 2025-10-02

At last...sensible, knowledgeable, no drama, no nonsense.....thank you❤

37
@Aangel452 2025-10-01

Anton, your knowledge and research is astounding. You don’t even read from a script, yet know exactly what you are fluently educating us about. You are truely a fresh breath of air. Thank you for your consistent videos of amazing topics😀

14

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