Light pollution is stealing our night sky — here's how to get it back
This (left) is your sky. And this (right) is your sky on ONE MAJOR LIGHT SOURCE. So it's no surprise that suburban starscapes have been totally desaturated by the lights on buildings, roads, and parking lots. Less than half the U.S. — and almost none of Europe — has dark enough night skies to see the Milky Way.
It's an easy fix, though, at least in theory. Replacing street lights with full cutoff lights, below, saves money and reduces glare while also giving us back the stars.
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