True and not true. It depends on the combination of lighting and atmospheric circumstances. Those who understand both would never post this. Neither would the consistently observant who have noticed you can actually see the shadowed side on occasion due to these circumstances.
Discussion
Yeah same thought on this note. I'm all for conspiracy but this concept just is a no for me.
The blue light (rayleigh scattering) of the sky is a foreground object to the moon, where it is a background for the pingpong ball. The sun acts as nearly a point source as light for the moon, where the reflections of sunlight from the surface also illuminate the pingpong ball. This gives the pingpong ball a noticable different lighting over the blue light background of Earth's atmosphere.