@mark noble,
You haven't done much photography, have you mark?
Set your camera fstop and shutterspeed to take pictures during the day. Now go out and take a picture of the night sky using those settings. I bet you won't see a single star in the pictures you take. Does this prove you aren't on the earth?
On the moon, the lunar lander and the astronauts are in bright sunlight. That means in order to photograph them you have to set the camera for how bright they are.