Andy Weir's "The Martian" was hard sf. Aside from a couple of inconsistencies which were necessary for the plot to evolve, everything else was rock solid. A lo

Andy Weir's "The Martian" was hard sf. Aside from a couple of inconsistencies which were necessary for the plot to evolve, everything else was rock solid. A lot of people write hard sf. Alastair Reynolds is one of my favorites.