Photography is all about light, which would seem to make it a daytime activity. Yet some of the most fascinating images can be taken at night. Where does the light come from to make an image then? There are many sources of light during the dark hours of the day; starlight, moonlight, light pollution and even lightening storms. The light levels are often low, but a tripod and long exposures allow those low light levels to build up, and modern digitial cameras have become excellent at capturing images in the dark. Here is a collection of "Nightscapes" taken over the years.