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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From pirate port to nature preserve
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Does this shark have an Irish accent?
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Paleontology meets art
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Terraced rice fields, Yuanyang County, China
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International Tiger Day
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It s Independence Day in Mexico
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Misool Island, Indonesia
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A polar bear near Churchill, Manitoba, Canada
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Noctilucent clouds
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World Poetry Day
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A theatrical dream
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Hoisting a flag for seafarers
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Fly me to the moon
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Lighting the way to new beginnings
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Shark Fin Cove, California
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What does the fox dream?
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Neuschwanstein and Hohenschwangau castles, Bavaria, Germany
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International Day of the Worlds Indigenous Peoples
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Freeloaders of the avian world
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SantaPark, Lapland, Finland
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Alaska Day
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Native American Heritage Month
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Glenfinnan Viaduct
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International Beaver Day
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Everyone s watching the Perseids
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Buddha in the roots of a tree, Ayutthaya, Thailand
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Bridge of Hillsborough County
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Ringing in the new year at Teotihuacan
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Oud-West, Amsterdam, Netherlands
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The Giants Causeway, Northern Ireland