NASA Artemis flyable 3D simulator (SvelteKit orbital mechanics)

Description

Fly Artemis II Moon approach with real orbital mechanics. Take manual control of Orion, override the official NASA trajectory (ghost mode), test crazy alternative orbits, or deliberately fly whoopsie-daisy collision courses. All while racing against the real mission data. 👉 spacefomo.com/artemis Built from scratch with real NASA OEM ephemeris files + JPL Horizons data, a custom RK4 propagator, and interactive maneuver nodes. Proudly made with SvelteKit and Threejs runes + web workers @SvelteSociety ---- #artemis #artemismission #moon #simulator #spacesim #orbit #physicsengine #svelte #threejs #webgl