Grace making huge advencements in the Eridian medical field.
Turns out there's a childhood disease to the tune of measles that erodes the carapace, and the first symptom shows up about a week before any actual damage is caused.
Grace comments to Rocky that one of his students seems to be turning oxidisation-green. About a week later that student has to be hospitalised for this illness.
Eridian scientists realise pretty quick that Grace can detect the illness long before any of their equipment can, and when caught that early it is much, much easier and safer to treat.
Not only is Grace celebrated in the scientific field for his knowledge and for his part in saving the world, he becomes a beacon of hope for doctors and parents and children on Erid.