Light pollution in urban centers creates a sky glow that can blot out the stars. The brighter the area in this zoomable map, the harder it is to see stars and constellations in the night sky. In the United States, national parks are often a refuge for darkness; national parks are shown in purple in the map below. Check out the globe version of the atlas, too (not compatible with Chrome).
Continue to article and discussion...
No comments:
Post a Comment