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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Wallabies at sunrise, Australia
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Hey, don t you guys have somewhere to be?
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Life in the slow lane
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Palazzo Zuccari, Rome
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In the footsteps of Leopold Bloom
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Hoh Rain Forest, Olympic National Park, Washington
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European hedgehog in Sussex, England
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How green is my valley
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Summer solstice
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Pollinators: not to be sneezed at
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Golden Gate Bridge, San Francisco, California
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Siblings Day
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The birth of Bauhaus
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The Spirit of Harlem by Louis Delsarte
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Wild and Scenic Rivers Act
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Red Planet Day
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Cypress trees in George L. Smith State Park, Georgia
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The Blue City of Jodhpur, Rajasthan, India
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International Day of Friendship
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Point Reyes National Seashore
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A ‘city’ within Valencia
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Three Natural Bridges, Wulong Karst, China
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Guilin and Lijiang River National Park, China
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Welcome to the Alien Egg Hatchery
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Central Highlands of Vietnam
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Yosemite National Park turns 132
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Bioluminescence at Trwyn Du Lighthouse in Wales
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Short-eared owl
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Honoring those who served
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National Llama Day
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