@Conscious Donkey IIRC in the book he was getting old and the stronger gravity of Erid was breaking his body. He was afraid he might not survive the return trip.
@JP
I was a bit concerned that Grace chose to stay on Eridani, though. He’d spent some 10 years in space, being bombarded by cosmic radiation. That’s a sure-fire ticket for cancer. On Earth, he’d get the best known treatment, based on 80+ years of human medical experience with the disease. On Eridani, his chances would be very limited.
That laptop had as near as the project team could get to the sum total of human knowledge on it, they can look it up.

your current filter.“Somepony mentioned me”?
IIRC in the book he was getting old and the stronger gravity of Erid was breaking his body. He was afraid he might not survive the return trip.
he does have the medical robot and rocky was supposedly shielded by astrophage, so i say its plausible
I was a bit concerned that Grace chose to stay on Eridani, though. He’d spent some 10 years in space, being bombarded by cosmic radiation. That’s a sure-fire ticket for cancer. On Earth, he’d get the best known treatment, based on 80+ years of human medical experience with the disease. On Eridani, his chances would be very limited.