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 "e;red"e; 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.