I'm no rocket surgeon, but it seems logical to think about it this way. The inner space is blue because of the light spectrum during the day.
The moon is not always visible during the day. When it is in the daytime location, in the blue sky, the sun reflects light off it too. That reflected light comes through the light of the inner atmosphere. The darkness does not reflect light. All but few stars reflect enough light to be seen on a clear day. Rarely are they visable.
An astronomer or space cadet can explain it better, but that's my understanding.
The moon is not always visible during the day. When it is in the daytime location, in the blue sky, the sun reflects light off it too. That reflected light comes through the light of the inner atmosphere. The darkness does not reflect light. All but few stars reflect enough light to be seen on a clear day. Rarely are they visable.
An astronomer or space cadet can explain it better, but that's my understanding.
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