Ryland Grace wakes up without memory after ten years from an artificial coma on a spaceship, light years away from Earth in the Tau Ceti system. The rest of the crew is dead. As his memories slowly return, he realizes that his mission is to decode the mysterious substance Astrophage, which leads to the extinction of suns and thus also threatens life on Earth. The mission of the molecular biologist, who is forced to teach as a middle school teacher because the scientific world was not ready for his radical ideas, is to decode this substance. In this far-from-Earth system, a star has been discovered that seems to resist parasitic astrophytes made up of tiny bacteria. The ESA employee Eva Stratt selected him for the rescue mission, called Project Hail Mary, and prepared him for his mission. (Wikipedia)