In a sequel to indie phenom Peter Cawdron's Retrograde, Reentry applies realistic technology to examine not just interstellar exploration, but the dangerous potential of Artificial Intelligence. For fans of hard science fiction by authors such as Andy Weir, Gregory Benford, and Philip K. Dick After almost dying on Mars, astronaut Liz Anderson returns to Earth, but not to a hero's welcome. America is in turmoil. The war is...