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
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Anybody out there?
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Don’t get lost in there
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A river runs through rice fields
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A Festivus for the rest of us
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Nubble Island’s only industry
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Lace up your hiking boots for Mountain Day
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Fight for your lefts
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Not your average sandcastle
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Salt of the earth
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Big sky at Big Bend
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These patterns tell a story
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Don’t look down
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An avian predator built for the snow
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Come out of your shell for World Turtle Day
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Let the holiday shopping commence
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Hemingway’s Keys
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Shining like Klondike gold
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Fighting evil with costumes
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Sydney Harbour Bridge in Sydney, Australia
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Brown bears, Katmai National Park and Preserve, Alaska