Galaxium, an experimental WebGPU space explorer
Details
- External ID
- 49420524
- Source
- HN
- Company
- —
- Product
- Galaxium, an experimental WebGPU space explorer
- Website domain
- galaxium.app
- Launched
- Aug. 24, 2026
- Cohort
- —
- Upvotes
- 137
- Upvotes percentile
- 0.9516129032258065
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Description
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.
Enrichment
- Theme
- interactive simulations and creative experiments
- Vertical
- Horizontal
- Function
- Hardware & robotics
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- webgpu space exploration visualization
- Manually corrected
- False
Could you build this?
No An interactive 3D universe explorer utilizing WebGPU requires specialized 3D graphics rendering, astronomical coordinates handling, and massive catalog streaming.
What it would actually take: Requires advanced WebGPU/WGSL shader development capable of logarithmic depth buffering or floating-origin coordinates to avoid precision loss across astronomical distances. It also requires spatial indexing structures (like octrees) to dynamically page and render millions of celestial objects from astronomical catalogs (e.g., Gaia), alongside orbital mechanics algorithms.
Discussion
20 comments analyzed.
Competitors mentioned: Celestia, Stellarium Web, No Man's Sky, WebGL solar system viewers
Concerns raised: Browser compatibility issues (Firefox, Linux, Chromium on GTX 1070), SSL/security errors blocking access in Firefox and Chrome, Memory allocation errors on older GPUs, Earth rotation appears incorrect for certain timezones, WebGPU technology not available in all browsers
Feature requests: Perspective switching to show objects from Earth's viewpoint, Auto-revolving camera around objects (screensaver mode), Size reference comparisons and scale information, Mobile support, Adjust zoom behavior when selecting objects (view entire galaxy without excessive scrolling)
Competitors
Other products that read as similar to this one — 80 launches clear the similarity bar, closest 8 shown.
Attention rank: #9 of 81 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 287 days after the earliest competitor.
- farseer.space · hn · 2026-09-15 · 11 upvotes · similarity 0.50
- DailySpace, Android app for exploring space photos and rocket launches · hn · 2026-01-14 · 7 upvotes · similarity 0.48
- Artemis.fyi · hn · 2026-04-04 · 11 upvotes · similarity 0.45
- A solar system simulation in the browser · hn · 2025-12-29 · 13 upvotes · similarity 0.44
- Galacius · ph · 2026-09-24 · 2 upvotes · similarity 0.42
- Earth is Optional · ph · 2026-09-18 · 2 upvotes · similarity 0.42
- Gravity · hn · 2026-06-09 · 217 upvotes · similarity 0.41
- SOLAR · ph · 2026-09-25 · 2 upvotes · similarity 0.41
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a hardware & robotics tool for Fintech yet.