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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It s World Poetry Day
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The Grand Départ: Tour de France begins
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Working for that cliffside view
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Masai giraffes in Amboseli National Park, Kenya
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All in a day s work
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Toledo, Spain
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The Wall for Peace
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Giant kelp in the Channel Islands National Marine Sanctuary
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A timeless view of the night sky
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Back on the rise
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Zion National Park Turns 100
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Cinco de Mayo
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Friendship Day in the City of Brotherly Love
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A summertime light show
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National Pearl Harbor Remembrance Day
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Palazzo Zuccari, Rome
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Anniversary of the British Museum
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Squirrel Appreciation Day
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A cutting-edge art gallery opens in Paris
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Quiver trees in Namibia
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Tom Turkey takes Manhattan
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Inhale and exhale, it’s Yoga Day
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The glowing waters of the Matsu Islands
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Ruins of a royal temple
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I see one!
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Tokyo welcomes a futuristic new art museum
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High seas commerce
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Smithsonian Secretary Lonnie Bunch on the institution s 175th anniversary
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Lei Day
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Harvest season begins
Bing Wallpaper Gallery

