MarsX is a novel about how the first manned expedition to the surface of Mars could happen. At the time of writing there have been photograph machines such as orbiting satellites and surface-placed rovers and landers used to explore the "red" planet. Some day, however, in the near future, there will be excursions by Earthlings to the distant and seemingly uninhabitable world. The actual voyage and its aftermath are only a matter of imagination and creative thinking based on currently available information.