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
More Desktop Wallpapers:
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In the Highlands for Saint Andrew s Day
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Incense making, Vietnam
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Petroglyphs near Fruita in Capitol Reef National Park, Utah
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Ides of March
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Naxos in the Cyclades Islands of Greece
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Ancient art in the Amazon
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Tafilalet oasis in Morocco
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Black Fell in England s Lake District
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Bryce Canyon National Park turns 100
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Happy New Year! (Again!)
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Whoopin it up!
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Mountain mists over Bavaria
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Porto Flavia, Sardinia, Italy
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Festivus
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St. Patricks Day
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International Kissing Day
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World Book Day
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Christmas market, St. Stephens Basilica, Budapest, Hungary
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Winter scenery near Kuhmo, Finland
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Everybody loves World Turtle Day
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Bangkok, Thailand
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Find a Rainbow Day
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Miravet, Catalonia, Spain
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Te Rewa Rewa Bridge near New Plymouth, New Zealand
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Christmas Eve
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International Polar Bear Day
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A spectacle unlike any other
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Black History Month
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Making it work—in Norway
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A dramatic view of Sicily
Bing Wallpaper Gallery

