Fall is in the air—officially. The September equinox marks the transition from summer to autumn in the Northern Hemisphere, while in the Southern Hemisphere, spring is just beginning. The term "equinox," derived from Latin, means "equal night." It marks one of two points during the year when the sun sits directly over the equator, and the Earth receives roughly equal amounts of daylight and darkness.
Autumnal equinox
Today in History
More Desktop Wallpapers:
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Big Bend National Park turns 78
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Rice terraces of Mù Cang Chải, Yên Bái province, Vietnam
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Aprils full moon
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A hidden jewel in Croatia
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Chaco Culture National Historical Park, New Mexico
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Tintern Abbey, Wales
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A fair that s star-studded
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A star blows a bubble
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World Bee Day
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International Day for Monuments and Sites
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Oktoberfest, Munich, Germany
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New Year s Day
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Steyr River, Austria
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Social climbing
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By the light of the fireflies
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Wyoming celebrates its statehood
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Great Sand Dunes National Park and Preserve
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The dog days of summer
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World Population Day
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Wychwood Forest, Oxfordshire, England
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International Polar Bear Day
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Fall colors below Mount Sneffels near Ridgway, Colorado
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World Penguin Day
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In the Himalayas for International Mountain Day
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Canada Day
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Antarctica Day
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Sundance Film Festival
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It’s showtime for a precious crop
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In praise of the old…the very old
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A species worth defending
Bing Wallpaper Gallery

