Discovery of a new satellite or ring arc around Quaoar

https://phys.org/news/2025-09-discovery-moon-orbiting-mysterious-distant.html

17•wglb•1d ago

Paper: https://iopscience.iop.org/article/10.3847/2515-5172/adfeda

Comments

wglb•1d ago

Article in RNASS research notes https://iopscience.iop.org/article/10.3847/2515-5172/adfeda

tomhow•1h ago

Previous related discussions:

Second ‘impossible’ ring found around distant dwarf planet - https://news.ycombinator.com/item?id=35762112 - April 2023 (61 comments)

Ring discovered around dwarf planet Quaoar confounds theories - https://news.ycombinator.com/item?id=34714024 - Feb 2023 (1 comment)

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Discovery of a new satellite or ring arc around Quaoar

Comments

UTF-8 is a brilliant design

QGIS is a free, open-source, cross platform geographical information system

Meow: Yet another modal editing on Emacs

Life, work, death and the peasant: Rent and extraction

I used standard Emacs extension-points to extend org-mode

FFglitch, FFmpeg fork for glitch art

Many hard LeetCode problems are easy constraint problems

The treasury is expanding the Patriot Act to attack Bitcoin self custody

Tips for installing Windows 98 in QEMU/UTM

California lawmakers pass SB 79, housing bill that brings dense housing

EU court rules nuclear energy is clean energy

3D modeling with paper

Unauthorized Windows/386

Discovery of a new satellite or ring arc around Quaoar

Reduce bandwidth costs with dm-cache: fast local SSD caching for network storage

How FOSS Projects Handle Legal Takedown Requests

Rust: A quest for performant, reliable software [video]

OpenAI Grove

Antlr-Ng Parser Generator

Corporations are trying to hide job openings from US citizens

Show HN: Aris – a free AI-powered answer engine for kids

Proton Mail suspended journalist accounts at request of cybersecurity agency

First 'perovskite camera' can see inside the human body

Windows-Use: an AI agent that interacts with Windows at GUI layer

How to become a pure mathematician or statistician (2008)

Oq: Terminal OpenAPI Spec Viewer

Real-time AI hallucination detection with timeplus: A chess example

Humanely dealing with humungus crawlers

I don't like curved displays

Show HN: Building a Deep Research Agent Using MCP-Agent