Alternatives
Products that do what Galaxium, an experimental WebGPU space explorer does
Hello, I am the creator and maintainer of Stellarium Mobile. I have been working in my free time for about a year on this new project Galaxium, that is more about traveling in the universe rather than looking at the sky from Earth. It is still experimental, and at the moment I am not sure what it will become. Feedback is welcome.
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We have a black hole at home — with actual relativistic physics, live in your browser. I'm Sasha (Alexander) Plavin, an astrophysicist at Harvard's Black Hole Initiative studying quasars and black hole environments. I work with raytracing/radiative transfer simulations professionally, and wanted to make one anyone can play with — so I built this app. Put the black hole onto your screen (any browser), or directly into your room with AR or VR (requires WebXR, for example Chrome on Android, or any VR headset). When looking around, pay attention to unintuitive relativistic effects: rays…
Jul 2026 · blackhole.plav.in
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Hi there, humans! I'm a big fan of any topic related to our universe. I'm also a developer, so I've put these things together and I built this new tab Chrome Extension for space lovers, astronomy fans, and science geeks like me. If you enjoyed it, please spread some love <3
2022 · spatium.earth
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2016 · github.com
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Switching back-and-forth a bit between Spacemacs and Neovim, I got inspired by https://github.com/ctjhoa/spacevim and thought to myself "Hey, that's a great idea!", and so I went into my first time actually toying with vim script (love-hate relationship atm). The result of the last couple of days so far is the ground work for a Neovim specific port of Spacemacs, located here https://github.com/Tehnix/spaceneovim. The major difference between that and the existing spacevim is that the layers are separated out from the core, and can be updated via an…
2016
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2020 · spacevim.org
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Hello HN! My name is Rémy and I recently published an astronomy dashboard where everything is open source: the code of the website, the framework it is based on and the library that computes astronomical data. For the last few years, I have been developing the Ruby library Astronoby (https://github.com/rhannequin/astronoby) with as much dedication and perseverance I could while I don't have any scientific academic background. My end goal was to use this library and build a website that not only provides as much data as possible, but let anyone access and understand how it…
Nov 2025
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Hi HN, I’ve always been fascinated by space and how much is happening beyond what we usually see day to day. I wanted a simple way to explore space photography and learn what I was actually looking at, without jumping between lots of different sites or long articles. So I built DailySpace, an Android app for exploring a large collection of space photos with short and clear explanations. You can browse thousands of images of galaxies, nebulae, planets, stars, black holes, Earth, and different NASA missions organized into categories or found through search. As I kept using it myself, I added…
Jan 2026 · play.google.com
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http://www.terraexgame.com Terra Ex will be a 4x ("explore, expand, exploit, and exterminate") multiplayer online browser based game. Our Kickstarter will begin Oct. 16th (link to KS preview is on our site). We are making this game, in part, to fund STEM education. Details are on our site. About the game (from the site): "Our story begins eons from now, when Earth collides with Mars. Humanity must face an uncertain future: we must forge new civilizations in the far corners of space. Your ships are small at first, but opportunity is endless. Will you become a merchant society or…
2013
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I made this little walkthrough for finding the visible planets tonight and a meteor shower shooting start counter. Plus a little model of the solar system to try to wrap my head around what's going on. It's all based on your location if you provide it. lifesprites.com/solar.html doesn't require account creation. The rest does. It's free, but you need an account.
25d ago · lifesprites.com
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Hi HN, I'm a solo dev working on a space RTS game set in the Milky Way galaxy, containing currently known stars and exoplanets with their real characteristics, the remaining stars are procedurally generated. In the online mode, all players are in the same universe, and the world is persistent. You compete with other players to take back the Solar System and end your exile. Players can always retreat to the periphery to regain strength and rebuild their fleets as needed. It also includes an procedural spaceship generator that allows creating your own spaceship designs. Spaceships visuals…
Feb 2026 · stardustexile.com
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I wrote a simple web UX in Python/JavaScript that spawns a conversation with Google Gemini with MCP commands that let it work on a specific coding task that you specify: http://github.com/alefore/duende The UX lets you observe the conversation and provide guidance (e.g. "don't implement Foo through Bar, that's suboptimal; instead …"). It supports a `--review` mode, where once the main conversation says "I'm done with the task", various "evaluation" conversations are spawned, each focusing on reviewing the change from a very specific angle (e.g. "does it introduce…
2025 · github.com
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Hello HN, I've been working solo on Octelium for the past 5+ years now, (yes, you just read that correctly :|) along with a couple more sub-projects that will hopefully be released soon and I'd love to get some honest opinions from you. Octelium is simply an open source, self-hosted, unified platform for zero trust resource access that is primarily meant to be a modern alternative to corporate VPNs and remote access tools. It is built to be generic enough to not only operate as a ZTNA/BeyondCorp platform (i.e. alternative to Cloudflare Zero Trust, Google BeyondCorp, Zscaler Private…
2025 · github.com
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I don't always all-caps, but when I do, it's because every word is an acronym. The NASA HORIZONS[1] system is a telnet service that provides planetary data and ephemeris tables, which are basically coordinate-time plots for celestial bodies. It's pretty archaic and somewhat difficult to use, especially since it just dumps out text tables and you have to parse it to do anything with it. Some projects, e.g. KDE Marble, use it as a data source and typically just consume it with a little procedural code to get what they need. I wanted to provide a full-fledged library for it so that you can…
2013
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