2 books tagged with hard sci fi, sorted by rating.
by Andy Weir
by Cixin Liu
After a dust storm forces his crew to evacuate Mars, astronaut Mark Watney is left behind — presumed dead. Stranded with only a handful of supplies, Watney must use his ingenuity and engineering skills to survive on a planet that's trying to kill him in every way imaginable.
Set against the backdrop of China's Cultural Revolution, a secret military project sends signals into space to establish contact with aliens. An alien civilization on the brink of destruction captures the signal and begins to plan an invasion of Earth. Meanwhile, on Earth, different camps begin to form, planning to either welcome or fight the alien visitors.
