Low-cost travels within the Solar system
Modern space mission designs are often based on merging advanced notions of Celestial Mechanics and Dynamical Systems theory. In particular, the special configurations known as collinear equilibrium points are used to compute low-energy orbits, which allow us to let the spacecraft travel along natural dynamical routes, without requiring too much fuel consumption (hence minimizing the total cost of the mission). The overall astrodynamical strategy comes over the centuries, thanks to the works of...