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That Was Then

Photograph Courtesy of Carnegie Observatories Photograph Collection, Huntington Library, via NationalGeographic.com
Los Angeles and Pasadena in photos taken from Mount Wilson in 1908 (above) and 2008 (below); for more pictures of our bright nights, go to http://ngm.nationalgeographic.com/2008/11/light-pollution/richardson-photography
Photograph by Jim Richardson, via NationalGeographic.com

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