Solar System Simulator with 3D visualisation written in Java and JavaFX. Positions and velocities of more than 50 solar system bodies are continuously updated using either Newton mechanics or General Relativity. Initial positions and velocities are obtained from Nasa JPL's ephemerides. The journeys of 12 spacecraft are simulated and visualised.

An online tool providing automatic design of trajectories with multiple gravity assists for Kerbal Space Program.

基于NASA的开源软件General Mission Analysis Tool（GMAT）的行星际转移轨道算例

ASTRA is a MATLAB-based toolbox for optimally build MGA trajectories.

simulate a Flyby of a space probe with python