We don't know much about our Ethiopian ancestor Lucy who walked the Earth some 3 million years ago, however, it is likely that she made her way around at night but the light of the stars, air glow, and the Moon. In modern humans, the Rod receptors in our eyes become amazingly sensitive when they are not exposed to bright light for some 30 to 45 minutes. At this point things look black and white even though your eye's maximum sensitivity is close to the color of the green light given off by atmospheric night airglow.Your visit to a dark sky location like the Coismic Campground IDSS in New Mexico will allow you to experience the age old sense of wonder which happens when a human looks into deep space and thinks about what might be out there.