The Direct Fusion Drive (DFD) is a nuclear fusion engine that will produce thrust and electrical power for any spacecraft. It is a compact engine, based on the D-He3 aneutronic fusion reaction that uses the Princeton field reversed configuration for the plasma confinement and an odd parity rotating magnetic field as heating method to achieve the fusion. The propellant is deuterium, which is heated by the fusion products and then expanded into a magnetic nozzle, generating an exhaust velocity and thrust. In this work we present possibilities to reach and study the outer border of the solar system using such an engine.