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Originally Posted by hhEb09'1
Not exactly the same, of course, but only approximately the same very far away from the moon.As you allude to in your later post, the Earth would not provide much "protection". It would be as if someone were throwing stones at his face, and you were protecting him by holding a beach ball fifty meters away.I think that is only a hypothesis, and one far from certain, IIFC. That may have been what they meant by "no one really knows"
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About your first comment: that was me jokingly explaining my "moon has only one hemisphere" theory, not to be taken seriously. You're right however that any shape's field will closer resemble that of a round object the further away (point source effect). You owe me 6] for reading my theory though
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The rest: I'm interested in explanations of why the far side of the moon looks different. The earth indeed won't do a very good job at protecting the near side, though it might help just a little bit. A quick Google didn't turn up explanations that were presented as being more than more or less uncertain hypotheses.