Project Hail Mary

<p>Ryland Grace, a science professor, wakes up alone aboard a spaceship, light-years from Earth, with no memory of his identity or why he's there. Gradually, his memory returns, and he understands the importance of his mission: to solve the mystery of the substance causing the Sun to die. To try and save humanity, he will have to draw on his scientific knowledge and some unconventional ideas.</p>