Experimentation with slightly reflective disks in front of a beam of light, where the shadow cast is about 10% of the area of the light cast onto a surface, will produce a disk reasonably well lit from reflected light. No sign of an impenetrable pitch Black Disk here. Is it magic which turns the Moon into an impenetrable pitch Black Disk ?
Is it possible that the Black Disc could be lurking some place else? In a word, YES. The best place to look would be between the Moon and the Earth. And the best place to start is the area of the ionosphere about 80 miles above us which is known to be an electrically conductive belt about 10 miles thick. Scientists are well aware of this area. They know that it has high voltage electricity, possibly billions of volts, surging through it. Mostly they choose to ignore it, and hope it will go away, perhaps.
We actually name the Black Disk of the Moon correctly. We never refer to the "Black Moon." The reason is that the Black Disk is obviously flat. If the Moon was to become black, it would still appear as a sphere. The Black Disk is "of the Moon", but is nowhere near the Moon.
We are surrounded with neon and fluorescent lights, nobody seems aware that the high voltage, low atmospheric pressure conditions in the ionosphere are exactly suitable for the creation of neon type light. Probably impossible for this light not to be created there. We all know quite well why the sky is blue, don't we. Well, we could be very wrong. It is quite possible that the atmosphere creates a large portion of our light. Soft indirect lighting which we also use to effect in our homes. I suspect Nature is way ahead of us in inventing things.
Our planet may have not just one, but two independent sources of daylight.
Two great lights