Whatever you do, don't think about what happens to Grace's biodome after he dies. Don't think about it becoming a monument to the first inter-planetary friendship. Don't think about the generations of Eridian scientists who will visit it to learn about Earth and prepare for visits when they work out the whole space-travel thing outside of an extinction-level emergency.
Any whatever you do, do NOT think about the little Eridian schoolkids who go there on class trips and play in the water in their special exo-suits and listen to lessons that Grace pre recorded while he was still alive and become inspired to be biologists and astronauts and teachers themselves.
Don't imagine Rocky joining them, so that he can hear his old friend teaching children about the wonders of science once more and pretend, just for a moment, that he's still there with them.
