"This gives us a maximum timeframe of 35 years for this rock formation, well within the course of a single human lifetime.

A rock containing many smaller round stones could indicate that there was once a large amount of liquid water on the Red Planet.

If you want to brush up on your knowledge of rock Pokémon weaknesses, then you're in the right place. We've created this guide to remind you of everything to look out for, whether you're trying to ...