National parks offer some of our nation's best views of the cosmos. A fundamental new work, The New World Atlas of Artificial Sky Brightness, significantly expands knowledge of light pollution and its impact on the night sky. The atlas, published by Science Advances, is the work of an international team including National Park Service (NPS) scientist Dan Dursicoe.
"Few places on earth offer pristine dark views to the rising Milky Way and starry constellations and light pollution is a bright filter upon this vast canvas," said Duriscoe. "Verification of NPS ground measurements with satellite data from NOAA creates an accurate model for predicting night sky quality in national parks and locations around the world, which can be used to increase opportunities for park visitors and stargazers to enjoy this rare and diminishing resource."