Ben Bova’s Grand Tour SciFi Series

From the prolific author Ben Bova comes a four-book bundle of science fiction space operas from his Grand Tour SciFi series. Mars and Return to Mars follow the struggle of settling on Mars, and Moonrise and Moonwar follow the events of colonizing the Moon – all struggling against the limitations Earth would set on these bold innovators.
Mars: A team of astronauts face many challenges on a mission to Mars—including subzero temperatures, violent meteor showers, and a deadly virus. Native American geologist Jamie Waterman must navigate political intrigue at home, team conflict on the base, and a harsh and unforgiving environment to protect his own life and those of his crewmembers.
Moonrise: A private company has established the first permanent human settlement on the Moon. But all is not as it seems there. Facing internal conflict and external protest, the company threatens closure—and former astronaut Doug Stavenger must protect the base and its inhabitants from the Moon’s harsh environment and the threat of murder.
Moonwar: The second of Ben Bova’s Moonbase Saga, Moonwar picks up seven years after the events of Moonrise—when Doug Stavenger succeeded in protecting his beloved lunar colony. But the nanotechnology that keeps the colony functioning is now illegal on Earth—and the settlers must defend themselves against new threats from Earth.
Return to Mars: Six years after the first manned expedition to Mars, a second is being planned, and Native American geologist Jamie Waterman is assigned as commander. He must face deadly internal rivalries, dangerous "accidents" that look like sabotage, and an intense new attraction to one of the crew members—and keep his crew safe while exploring the secrets of the Red Planet.