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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
460•klaussilveira•6h ago•112 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
800•xnx•12h ago•484 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
154•isitcontent•7h ago•15 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
149•dmpetrov•7h ago•65 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
24•matheusalmeida•1d ago•0 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
48•quibono•4d ago•5 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
88•jnord•3d ago•10 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
259•vecti•9h ago•122 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
326•aktau•13h ago•157 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
199•eljojo•9h ago•128 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
322•ostacke•12h ago•85 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
405•todsacerdoti•14h ago•218 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
331•lstoll•13h ago•240 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
20•kmm•4d ago•1 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
51•phreda4•6h ago•8 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
113•vmatsiiako•11h ago•36 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
192•i5heu•9h ago•141 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
150•limoce•3d ago•79 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
240•surprisetalk•3d ago•31 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
3•romes•4d ago•0 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
990•cdrnsf•16h ago•417 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
23•gfortaine•4h ago•2 comments

Make Trust Irrelevant: A Gamer's Take on Agentic AI Safety

https://github.com/Deso-PK/make-trust-irrelevant
7•DesoPK•1h ago•4 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
45•rescrv•14h ago•17 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
61•ray__•3h ago•18 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
36•lebovic•1d ago•11 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
78•antves•1d ago•57 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
5•gmays•2h ago•1 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
40•nwparker•1d ago•10 comments

The Oklahoma Architect Who Turned Kitsch into Art

https://www.bloomberg.com/news/features/2026-01-31/oklahoma-architect-bruce-goff-s-wild-home-desi...
21•MarlonPro•3d ago•4 comments
Open in hackernews

Astronomers Discover Rare Distant Object in Sync with Neptune

https://pweb.cfa.harvard.edu/news/astronomers-discover-rare-distant-object-sync-neptune
55•MaysonL•6mo ago

Comments

ghssds•6mo ago
What is the meaning of the word "rare" in the context of astronomy? It seems to me calling the object discussed in the article "rare" is about as logical as saying the Earth is rare: of course a single object is rare.
dmix•6mo ago
Well there's a few thousand trans-neptunian objects that have been discovered. I presume rare here is for the orbit pattern being perfectly in sync with Neptune itself.
adrian_b•6mo ago
There already are known many trans-neptunian bodies whose movements are synchronized with Neptune. Pluto is also among those.

However all the others are closer to Neptune, therefore the ratios between their revolution periods an that of Neptune are relatively small rational numbers, while for this new object the ratio is 10, which is much greater.

So for now, it is one such object among many, so it may be called "rare", at least until others are discovered. In any case it was unexpected that resonances still exist at such distances.

bradly•6mo ago
I noticed this in another article recently referring to interstellar comets as extremely rare, when what the author I think meant was interstellar comets in our solar system are rare.
dreamcompiler•6mo ago
3-body problems are fun and there are still potentially a ton of resonances that have never been found, and that cannot be found analytically. This seems to be one of those.
TheHeasman•6mo ago
"The survey was designed to search for bodies with orbits that extend far above and below the plane of the Earth's orbit around the sun, part of the outer solar system that hasn’t been well-studied."

Christ. I didn't realise we hadn't looked at stuff not in Earth's plane. That's a tonne of space to explore, right in our own backyard.

Terr_•6mo ago
Just because there's a lot of space doesn't mean there's a lot of stuff to find in it. :p
jajko•6mo ago
Sun's rotation over time sort of aligns everything on that plane (or maintains momentum from accretion disk), galaxies are mostly also in disc forms. Pluto is a bit of an outlier, I wonder if due to some ancient collision or some other force.

So yes its a vast space (2D -> 3D), but should be rather empty no?

svpk•6mo ago
In my understanding no. Observation of other star systems has shown that ours is somewhat anomalous in being aligned to a plane.
dr_dshiv•6mo ago
Source?
Terr_•6mo ago
AFAICT most of the systems we've found with >1 exoplanet resemble our own system, where the planets are moving in roughly the same plane. If you look at this catalogue [0], the "i" value refers to the inclination of the orbit as viewed from Earth, since the parent star's rotation is often unknown. Still, it can be used to compare planets with others in the same system.

The closest I can find to your claim is some stuff from 2010 [1] (many exoplanet discoveries ago) claiming that a significant portion of "hot jupiter" setups are weird.

[0] https://exoplanet.eu/catalog/

[1] https://www.eso.org/public/news/eso1016/

kuschku•6mo ago
> Pluto is a bit of an outlier, I wonder if due to some ancient collision or some other force.

That's something most asteroids and trans-neptunian objects have in common, they're on eccentric orbits outside of the plane.

cnity•6mo ago
Well you might find, for example, a rare distant object in sync with Neptune.
venusenvy47•6mo ago
But isn't the Oort Cloud is a sphere around the sun? I've always wondered why the planets and Kuiper belt have a preferred disc, but Oort doesn't.
yencabulator•6mo ago
One theory is that interactions and collisions (all scales: gas, dust, comet, planet) are what cause the participants to align in the direction of the original net angular momentum, and the Oort cloud is just too sparse to that have happened as much.

Oort dust clumped up to comet-size objects for sure, but that tended to happen for the particles that were already roughly in the same orbit. Looking at all orbits in the Oort cloud, they remained more random.

jsbisviewtiful•6mo ago
> but should be rather empty no?

JWST has already challenged a lot of our perceived notions about the cosmos. Always worth checking more thoroughly and reexamining our theories as technology advances.

kgwxd•6mo ago
phew, i thought the CEO kisscam story made HN front page for a few words there.
phkahler•6mo ago
I thought such resonance was unstable. Isn't that the reason for the gaps in Saturn's rings?
nixass•6mo ago
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