Artemis II Moon Mission Simulator in the Browser
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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!
HN · launched Apr 5, 2026 · 5 upvotes (top 89%) · 0 views
Niche: simulation games · 118 launches, 10 in the last 7 days ▼ -44% · Explore this niche →
Category and tags
- Horizontal
- Hardware & robotics
- B2C
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 118 launches in simulation games →
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 : 137 launches clear the similarity bar, closest 8 shown.
Attention rank: #137 of 138 (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
- Orbit Me · ph · 2026-10-27 · 1 upvotes · similarity 0.52
- Rocket Landing: Moon Lander · ph · 2026-10-24 · 2 upvotes · similarity 0.52
- Where Is Artemis? · hn · 2026-04-05 · 8 upvotes · similarity 0.51
- I made a flight simulator, except you're just a passenger · hn · 2026-09-14 · 441 upvotes · similarity 0.49
- Moon Command · ph · 2026-11-11 · 2 upvotes · similarity 0.48
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