Current issue: Winter 2008

A Silent Cry for Dark Skies

Image courtesy of NASA

The dark sky is a natural resource that should be protected. The ongoing loss of a dark night sky for much of the world’s population is a growing, serious issue that impacts not only astronomical research, but also human health, ecology and ecosystems, safety and security, and energy conservation. This article outlines the effects of light pollution on animals and plants and describes simple ways that teachers and their students can get involved in measuring light pollution and reducing its adverse effects.