Project Hail Mary

Astronaut Ryland Grace awakens on a spacecraft with no memory of himself or his mission. He slowly deduces he is the sole survivor of a crew sent to the Tau Ceti solar system in search of a solution to a catastrophic event on Earth. In his search for answers, Grace must rely on his vast array of scientific knowledge, sheer ingenuity, and human will - but he may not have to search alone.