Moon Shadows Frustrate Astronauts

saskboy writes "Apollo Chronicles by NASA talk about moon shadows and how they are much darker than daytime shadows on Earth. This is because there is almost no light reflected from atmosphere molecules or secondary light sources like "earthshine". "It is very easy to see in the shadows after you adapt for a while," noted Armstrong. But, added Aldrin, "continually moving back and forth from sunlight to shadow should be avoided because it's going to cost you some time in perception ability." Working on the moon even in the daylight might present unique problems not typically encountered on earth, if visual coordination in a shadow riddled area is required for a task. Audio of the NASA article is also available."