Support WBURLight Pollution Hides Milky Way From 80 Percent Of North Americans, Atlas ShowsPlay02:24Download AudioNell GreenfieldboyceJune 10, 2016 ShareThis view of North America as seen in Google Earth shows colored areas that denote levels of light pollution as detailed in the New World Atlas of Artificial Sky Brightness. (Fabio Falchi et al./AAAS)