Our photo today has been digitally altered by NASA’s Earth Observatory team to remove natural light. Doing so reveals just how much artificial light human settlements generate. We share this image to draw attention to the observance of World Population Day today. The event was inspired by the Day of Five Billion on July 11, 1987, when the United Nations estimates our global population reached that milestone. Each year, World Population Day encourages us to think about how our growing numbers might affect our future, and the future of the planet we live on.
Evidence of human habitation
Today in History
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Green sea turtle on World Oceans Day
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Astrotourism at its finest
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Look to the north sky tonight for the Perseids
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Pegadung Rock, Lampung, Sumatra, Indonesia
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What kind of bird laid these eggs?
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Panda Day
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Floating market, Kaptai Lake, Bangladesh
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American Wetlands Month
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A sizzling summit hides in the clouds
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From pirate port to nature preserve
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Clouds over the River of Grass
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Leshan Giant Buddha, Sichuan, China
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Happy Thanksgiving
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Art in the chapel
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Regional Park of Migliarino, San Rossore, Massaciuccoli, Italy
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The Alhambra in Granada, Spain
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World Philosophy Day
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A night on the (ghost) town
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Happy Panda Day!
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Embracing the cold
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Martimoaapa Mire Reserve, Finland
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Crown Fountain by Jume Plensa at Millennium Park in Chicago
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World Art Day
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Happy Cousins Day!
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Remembering the Arizona
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Temple of Philae, Aswan, Egypt
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Let s crack the code
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Uredd Rest Area, Norway
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Apple Tree Day
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Patriot Day
Bing Wallpaper Gallery

