Halloween Witch And Cat My Broom Broke So Now I Teach Moon Shirt
If I understand correctly, the side facing towards us and the side facing away from us is determined by the weight/density variation of the moon's surface. So that might have something to do with why the side with one particular feature ends up facing towards us. There are lots of theories of how the moon was formed, and one is essentially that there were two proto-moons that collided and that the one basically spread out onto the back of the other (ELI5 version there), which is why the back side looks different and is different in thickness and composition. Its not that there are more craters in the middle, its the edges are slightly out of focus due to earths atmosphere and that makes the craters look less defined.
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