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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The first ascent
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Earth at Perihelion
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Saskatchewan s spookier side
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On the Route of the Waterfalls
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Did it see its shadow?
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Life carries on, rising from a ship s skeleton
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What are we looking at?
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Lake Tekapo, New Zealand
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Happy birthday, Saguaro National Park
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National Park Week continues
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Alpine marmots at Hohe Tauern National Park, Austria
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A growing business
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Happy Mother s Day!
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From Sputnik to extraterrestrial storms
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Ravens
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World Water Day
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Fall for Chile
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Fly me to the moon
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Dallas Latino Cultural Center for Hispanic Heritage
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A cozy winter village
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Manatee Awareness Month
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Saguaro cacti, Ironwood Forest National Monument, Arizona
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Flag Day
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International Jazz Day
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Decorating for Diwali
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Pining for spring
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Celebrating Festivus
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A fair that s star-studded
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National Find a Rainbow Day
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Juvenile sunbittern displaying at nest, Ecuador
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