The claims were so absurd that no rational person with an understanding of physics would buy their arguments. But then somebody I thought knew better linked to this site which offers a video purporting to prove that NASA faked the moon landing. Anyway, just one example of how tenuous the conspiracy folks hold on physical reality is. Specifically, Earth's atmosphere takes light and bends it, spreading it around objects.
Light reflects off air molecules and lights up the dark sides of objects.
It is atmosphere, bending the sun's light, that makes the sky appear to be blue. However, on the moon there is no prism of atmosphere to diffuse or bend light so the sky is totally black. On the moon, the sun's light should be blinding. In fact, the astronauts wear gold tinted face plates on their helmets to cut down 95-percent of the light from the sun. The dark side of objects in NASA photos should be pitch black, while the lit side should be hellishly bright.