So now you have to explain more things. The first being, "How does the moon emit light," and the second one would be, "Why do some parts of the moon not emit light?" It's ok to have ideas, but, "Some parts of the moon don't emit light just because," isn't going to fly.
Why isn't it going to fly? Because I'm not pulling hypotheses out of my ass like scientists do? I'm a Zetetic, remember?
Isn't it odd that those areas not emitting light are in a such a pattern as to bear a striking resemblance to shadows? How do you suppose that could be? I hate to invoke Occam's Razor, but wouldn't it be simpler to conclude that those dark areas in the craters are indeed what they appear to be (i.e, shadows)?
Shadows have patterns which allow us to identify them as paterns? It's just the absence of light markjo. As for it being "simpler", if there are shadows, what's creating the shadows? I see the Moon, and it's shining. I think "the Moon shines, and the dark bits of the Moon don't shine". You think "the Moon is a sphere, and it wobbles and is lit up by a giant spherical Sun".
I know which sounds simplest to me.