Light pollution disappears the stars and the beauty of The Milky Way. Explore how bright your city is at night with the interactive map by NASA…
Above: Light pollution comparisons using the Bortle Scale. Screenshot from Stellarium.
Mika McKinnon from space.io9 explains how you can get back Dark Skies:
“I live in a city. I can see pinpricks of bright stars, but I miss the spill of the Milky Way. Cities don’t need to be this bright, and dark skies don’t need to be a distant memory from trips to deserts, mountain tops, and vacations far from home.”
Lighting fixtures rated by dark-sky friendliness. Image credit University of Florida.
via space.io9
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