Furthering the off-topicness here (sorry), but what's the evidence for the second explanation? I can't fathom how that makes more sense than the heliocentric globe at all. Is it just to make the moon phases work with a flat earth and a near sun?They claim that the moon is self-luminous. The phases of the moon are completely independent of the sun and sunlight. That moonlight cools while sunshine heats is "proof" that moonlight has an independent and mysterious nature and is not reflected sunlight.
They further assume that, for some mysterious reason, the moon cycles through these phases. There are two models that I know of:
1. Part of the surface of the moon is producing light and part of it is not. The surface is much like a TV screen. In this model the moon can be a flat disk or a sphere.
2. The moon is a sphere with a light source inside. The surface is translucent with markings upon it. Between the surface and the light source there is another inside sphere ithat is half clear and half opaque. As the inside sphere rotates, the outside translucent surface goes through the phases.