Plan and fly missions anywhere in the Solar System on real physics: JPL Horizons ephemeris for every planet and target, an n-body trajectory engine with a live Lambert solver, solved low-thrust ion and plasma steering, and gravity-assist flybys integrated straight through each planet's gravity well. Fly Apollo 8, 11, 13 and 17, Voyager, Cassini, Dawn, Perseverance and more as they actually flew — or design your own Earth-to-Mars window on a porkchop plot and fly that.
Highlights: design a mission · build a ship · what am I seeing? (orbital mechanics explained) · how it's built — and proven against JPL data
Fly a Mission is the companion simulator to the hard-SF novel series The Merkabah Cycle: the Hyperion's voyage from the book is flyable here, on the same physics the story is grounded in. This application requires JavaScript and WebAssembly.