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Incredible! Dark Galaxy Right Next to Us Could Be a Little Red Dot (Segue 1)

2025-11-01 Science & Technology
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Anton Petrov
Anton Petrov
1.6m subscribers

Segue 1: Dark Matter Ghost or Massive Black Hole Core?

New research challenges Segue 1's status as the ultimate dark matter poster child. Discover why this nearby, dim galaxy might hide an unexpectedly massive central black hole instead.

Short Summary

  • Segue 1 exhibits an extreme stellar rotation increase specifically near its center, suggesting a highly compact, massive object resides there.
  • Dynamical models fit observational data significantly better when including a central black hole compared to dark matter-only explanations.
  • If confirmed, this object might represent a relic of an ancient "little red dot," providing access to early universe formation processes close to home. This session reviews the shift from viewing Segue 1 as pure dark matter evidence to analyzing recent findings that mandate a massive central gravitational source near the Milky Way.

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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 new discoveries about a bizarre galaxy known as Segue 1 - is it a Little Red Dot? Links: https://iopscience.iop.org/article/10.3847/2041-8213/ae0b4f https://arxiv.org/pdf/2505.06198v2 Previous videos: https://www.youtube.com/watch?v=tkkWrKMDzzk https://www.youtube.com/watch?v=atgUyYdDYP0 https://www.youtube.com/watch?v=V2G5IR9gAqI https://www.youtube.com/watch?v=VbAoyV8TRtA https://www.youtube.com/watch?v=OJltKxavCk8 #segue1 #milkyway #galaxy 0:00 Invisible galaxy Segue 1 and dark matter mystery 2:50 Is something else happening here? 4:00 Why this galaxy is so strange 6:20 Initial issue observed with stars here 8:10 Models that finally made sense 9:15 Massive central black hole and what this means 10:20 Little red dot? 11:55 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: Garrison-Kimmel , Bullock UCI SIMBAD, DSS M. Geha. Licenses used: https://creativecommons.org/licenses/by/4.0/ and relevant Creative Commons licenses

Top Comments (10)

@ianrideout1541 2025-11-02

Imagine my shock when I discovered this channel last week. Now imagine my shock when I discovered he had posted a video that same day. Now imagine the shock of discovering the videos never stop and are always amazing. 😂

258 33 replies
@jack00scarecrow 2025-11-01

hello wonderful people

153 13 replies
@davidsault9698 2025-11-02

Anton is one of the very best science news channels on YouTube. Lots of info, limited chit chat, clear explanations.

150 10 replies
@AJScraps 2025-11-01

Ever since your video addressing the weird video flicker it seems your uploads have been flicker free Anton!

80 7 replies
@B9bble 2025-11-01

Coolest amd most interesting space channel on all of YouTube 💯 Thank you Anton!!

60 2 replies
@Ssindosa 2025-11-02

Anton, thank you for years of fascinating me with space again and again, and for your years of dedication to science communication.

48 4 replies
@renevanderbij7796 2025-11-01

We finally found out what cats are staring at when it seems there's nothing to see.

26 1 replies
@stevenmiller3337 2025-11-01

Segue1 is 4 degrees decl. above Regulus, and sixty degrees up on the Galactic Plane.

16
@nathaniellujan6743 2025-11-14

Thats my paper!!!! Loved your explanation and background. Fun fact the analysis took half a million simulation runs on a super computer.

9 1 replies
@egreenlaw09 2025-11-02

One of your best videos Anton — btw, noticed for the first time the pacing edits for showing yourself talking. 1. You nailed it. It’s effectively the same length of time you’d pick up or drop eye contact with your audience as a lecturer. 2. This is THE BEST way to beat all the heaps of science pod AI SLOP that’s being churned out right now. (especially for the autists in your audience, who smell the stank of AI from a billion miles away — it lets new viewers know even quicker they can let their AI content guard down) Cheers and keep it up! 🎉

9

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