Artemis II Moon Mission Simulator in the Browser
Details
- External ID
- 47647146
- Source
- HN
- Company
- —
- Product
- Artemis II Moon Mission Simulator in the Browser
- Website domain
- radish.build
- Launched
- April 5, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.11182519280205655
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
I built a browser-based simulator of NASA's Artemis II mission — the first crewed lunar flight since Apollo 17.You fly the actual mission profile: launch to parking orbit, raise to High Earth Orbit, fire Trans-Lunar Injection when the Moon is in position, swing behind the Moon, and return to Earth. The physics uses RK4 integration with real Earth and Moon gravity.Have fun experimenting with what happens if you don't time it right!
Enrichment
- Theme
- space and geospatial visualization tools
- Vertical
- Education
- Function
- Hardware & robotics
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- artemis ii moon mission simulator
- Manually corrected
- False
Could you build this?
Partial A web frontend with three.js or canvas is straightforward to vibe-code, but realistic n-body orbital mechanics and patched conic trajectory propagation for lunar free-return missions require specialized astrodynamics math.
What it would actually take: To build an accurate lunar mission simulator, you need a numeric integration engine (e.g., Runge-Kutta RK4/RK8) modeling Earth-Moon gravitational fields, frame-of-reference transformations (ICRF, Earth-Centered Inertial vs. Moon-Centered), and accurate orbital maneuvering/delta-v calculations. The UI and 3D rendering can use Three.js/WebGL, but tuning real-time trajectory prediction and orbital burn physics requires deep knowledge of orbital mechanics.
Discussion
2 comments analyzed.
Competitors
Other products that read as similar to this one — 64 launches clear the similarity bar, closest 8 shown.
Attention rank: #63 of 65 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 138 days after the earliest competitor.
- Moonshot · ph · 2026-04-06 · 439 upvotes · similarity 0.60
- Artemis.fyi · hn · 2026-04-04 · 11 upvotes · similarity 0.59
- Rocket Launch and Orbit Simulator · hn · 2026-01-09 · 166 upvotes · similarity 0.56
- Where Is Artemis? · hn · 2026-04-05 · 8 upvotes · similarity 0.52
- I made a flight simulator, except you're just a passenger · hn · 2026-09-14 · 441 upvotes · similarity 0.49
- MoonMan · ph · 2026-09-22 · 4 upvotes · similarity 0.46
- SOLAR · ph · 2026-09-25 · 2 upvotes · similarity 0.46
- NASA Artemis II Mission Timeline Tracker · hn · 2026-04-02 · 93 upvotes · similarity 0.46
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a hardware & robotics tool for Horizontal yet.