This is a point I keep making: every one of NASA’s Mars missions has very carefully excluded any scientific instrument that could conclusively eliminate the presence of life... and hence future missions to find life.
I.e.: they don’t carry high power microscopes because apparently there’s no room for one on a 900kg rover the size of a car.
I.e.: they don’t carry high power microscopes because apparently there’s no room for one on a 900kg rover the size of a car.