A manned commercial shuttle for transporting scientists and tourists from Mars to the Saturnian moons. It is capable of making rendezvous with all of the large bodies, but it's most common destinations are Enceladus and Titan.
The ship is powered by an array of fuel cells, and is propelled by a Deuterium-fusing Gysdynamic Mirror Fusion rocket engine. This basically contains multi-million degree Deuterium plasma in a very long tube, confining it with tight magnetic fields. The results of the fusion reaction inside the inferno are directed out the magnetic nozzle at the end for thrust.