Is there a mod which adds a cap to biome hopping?
The logic is that in real life the discovery factor of each consecutive experiment is always smaller than that of a preceding one. The first samples and analyses give the most data about a planet. We don't need to land in each biome to make conclusions about the planet's geological composition, activity and certain weather patterns. So for example, after visiting any 6 biomes on one planet, there should be little left to research in all the other biomes.