>How come the stars are visible from Mars, but not from the moon?
Couple things to factor.
One being the surface reflecting back off the moon.
That alone does not explain it. But it does help make the next point.
For stars to be visible on Mars, one would need to be on the Night side of the planet.
With the moon, there is the additional factor of Earth, along with orbital orientation.
Since the moon is a satellite, it will have the factor of the primary light source of the sun, and secondary factor of Earth reflecting sunlight back onto the moon.
Since the moon is tidally locked, one side of the moon is constantly facing the Earth.
When this side of the moon is illuminated by sunlight, this cancels out stars, obviously.
However, when the side of the moon facing us is in the shadow of itself (during "night" time), it would still be facing the Earth, which would be reflecting back the light of the sun.
I'm not saying their pics make sense, nor am I accrediting any of their theories or explanations. I'm just trying to make sense of how or why that may be the case, from a neutral, but curious, perspective