Return To Earth

"Return to Earth" is a science fiction novel about a mission from the Mars Colony to Earth to rescue a small community that has survived a global catastrophe resulting from the impact of a giant asteroid. The colony is based on technology from the book 'Mars Colonization in the Twenty-Second Century' and uses propulsion vehicles left over from its early settlement. The community consists of scientists who found shelter in a large underground laboratory prior to the impact of the asteroid. The rescue team and the community fight off an attack by a gang of renegades that somehow survived the catastrophe.