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3rd Interstellar Comet Just Formed a Bizarre Tail and More Updates

2025-08-22 Science & Technology
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Anton Petrov
Anton Petrov
1.6m subscribers

Interstellar Comet 3I/Atlas: Latest Observations on Age, Activity, and Origin

Analyze the latest six weeks of scientific findings regarding the interstellar visitor 3I/Atlas. Discover why this ancient comet challenges standard models of solar system dynamics and composition.

Short Summary

  • Age and Origin Revealed: Evidence suggests 3I/Atlas is the oldest comet seen, potentially 7.6 to 14 billion years old, originating from the Milky Way's old Thick Disc population.
  • Extreme Activity Confirmed: The object shows surprisingly early and intense outgassing, including water vapor far sunward of typical sublimation zones, pointing to pristine material.
  • Chemical Composition Puzzles: Initial observations lack expected volatile compounds like cyanides, suggesting low metallicity or a thick organic surface layer.
  • Unusual Tail Dynamics: Scientists observed an unexpected sun-facing dust bloom alongside a standard eastward tail.

This report summarizes recent, unusual observations of 3I/Atlas, the third known interstellar object. The data, gathered rapidly over the last six weeks, focuses on its unique trajectory, extreme age, and surprising chemical activity, offering a rare glimpse into distant planetary formation processes.

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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 3I/Atlas and some of the recent observations Links: https://esahubble.org/images/heic2509a/ https://youtu.be/IRAQFWnY6uI #3iatlas #comet #solarsystem 0:00 3I/Atlas updates 2:10 Trajectory and origins 4:05 Composition, activity, size and elements seen so far 6:10 Too much water and activity 8:00 Lack of certain things 9:35 Surprising inward tail 10:35 What size is it though? 11:35 Unanswered questions 12:40 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 Credit: Renerpho CC BY-SA 4.0 https://en.wikipedia.org/wiki/3I/ATLAS#/media/File:3I_ATLAS_animation3.gif Olivier Hainaut et al./European Southern Observatory (processed by Nrco0e)  CC BY 4.0 https://en.wikipedia.org/wiki/3I/ATLAS#/media/File:3I-ATLAS_VLT_2025-07-04.gif David Rankin/Catalina Sky Survey Licenses used: https://creativecommons.org/licenses/by/4.0/ and relevant Creative Commons licenses

Top Comments (10)

@madclone84 2025-08-22

I’ve seen enough. Cue the Independence Day soundtrack.

595 35 replies
@roselan 2025-08-22

Hello Wonderful Comet

284 5 replies
@nzuckman 2025-08-23

Juno's mission will end next month. We should use it to observe 3I Atlas during its flyby instead of just crashing it into Jupiter!

204 73 replies
@whatdamath 2025-08-23

The "thrusters are on" comets were funny to read but in reality, many comets in the past exhibited a dust plume that emitted stuff from the heated, sunlit surface without turning into an Independence Day movie. Most recent example is C/2014 UN271 (Bernardinelli–Bernstein) https://en.wikipedia.org/wiki/C/2014_UN271_(Bernardinelli%E2%80%93Bernstein) As far as I know, no Will Smith was needed for that comet either. This seems to be common for pristine comets that almost never interacted with the Sun and seems to involve stuff like ammonia and co2 evaporating when facing the sun

183 53 replies
@larrywest8046 2025-08-23

“Ack ack ack.. don’t run, we are your friends.”

119 6 replies
@CoraxCatcher 2025-08-23

Build interceptor probes for future interlopers already! We’ve got intergalactic objects to study up close.

114 13 replies
@dogthatshags 2025-08-24

@Anton Petrov, WE LOVE YOU AND THE WORK YOU DO AND THEN SHARE HERE ON YT, you truly are a WONDERFUL PERSON! Thanks for everything Anton from Paddy in Melbourne Australia 👍🏼

41
@thewizardthatisall 2025-08-22

*camera zooms in, fear on face, moody colored lighting* "They're here." *thunder crackle*

21
@mnisanu 2025-08-23

Aliens: "I think it's about time we..." Anton: "No."

12
@shanevonharten3100 2025-09-04

A lot of information for something we've only known about for a very short time

1

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