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light pollution

Astronauts aboard the International Space Station took this image of southern Scandinavia lit up at night. A green aurora is visible over the horizon. NASA hide caption

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NASA

Earth Is Lit, And That's A Problem

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The lights inside LEF Farms' new greenhouse have replaced starry skies with a jarring and unnatural glow. Courtesy of Dennis Jakubowski hide caption

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Courtesy of Dennis Jakubowski

This 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 hide caption

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Fabio Falchi et al./AAAS

Light Pollution Hides Milky Way From 80 Percent Of North Americans, Atlas Shows

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Flares and electric lights on oil well pads illuminate low-hanging clouds near Watford City, North Dakota. Andrew Cullen hide caption

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Andrew Cullen

Oil Boom Means Sky Watchers Hoping for Starlight Just Get Stars, Lite

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