The premise: The Sun is dimming due to a microscopic alien life form called that consumes energy from stars. Ryland Grace, a jaded middle-school science teacher, wakes up alone on a spaceship with amnesia. He must save humanity by traveling to the Tau Ceti solar system.
Weir provides actual equations for how much fuel a spaceship would need, how heat dissipation works, and how relativistic effects come into play. The astrophage allows for without violating physics—it’s just extremely efficient energy storage. proyecto hail mary top