Protecting dark night skies in our National Parks is as vital as protecting clean air, water, wildlife and the sounds of nature.

Star gazing is a connection to humanity's earliest curiosity about our place in the universe. It is practically impossible to see the stars from most cities, but now, clear night vistas in our national parks are an important resource that is literally fading from sight.

The list is a metaphor for troubled national parks all across the nation, ... Some of our national parks are becoming a national disgrace.