In Project Hail Mary, toward the end, Ryland Grace tries to save Rocky by finding a way to help Rocky's home star system, which is also being affected by the Astrophage problem threatening its sun. Grace works on a solution that involves using his scientific knowledge to stop the Astrophage from consuming the star’s…
This involves collaboration between Grace and Rocky, using their combined scientific understanding and resources aboard the spaceship to develop a fix that can be applied to Rocky’s star system.
If you want more detailed specifics about the exact methods or steps Grace takes, those are not fully detailed in the provided context but revolve around stopping the Astrophage’s destructive cycle.
Let me know if you'd like a more detailed scientific explanation based on the book’s content!
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