When the lights go down, the universe puts on a show. International Dark Sky Week, celebrated each April, invites everyone to rediscover the night and learn why darkness is worth protecting. Launched in 2003, the week highlights how excessive artificial light affects wildlife, human health, energy use and our ability to see the stars. Fewer lights don"t mean less safety—smart, well-designed lighting can do both.
International Dark Sky Week
Today in History
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Why is this cliffside ablaze?
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Buildings on Grand-Place Square in Brussels, Belgium
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Red kite in snow
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International Dark Sky Week
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Los Glaciares National Park, Patagonia, Argentina
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Celebrating the Scottish bard
Bing Wallpaper Gallery

