Autumn is in the air—officially. The September equinox marks the transition from the lush summer to the mellow autumn in the Northern Hemisphere, while in the Southern Hemisphere, it signals the beginning of spring. The term "equinox" is derived from Latin, meaning "equal night." During this moment, the Earth"s axis is perpendicular to the sun, meaning it rises due east and sets due west, a rare moment of global balance. This balance occurs because the Earth"s axis is neither tilted toward nor away from the sun.
Autumn equinox
Today in History
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International Lighthouse and Lightship Weekend
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Irohazaka Road in autumn, Nikko, Tochigi, Japan
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An ocean of stars above the desert
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Great Smoky Mountains National Park, Tennessee, USA
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Sequoias of the sea
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Just a pinch
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50 years of the Endangered Species Act
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Mountains of sand
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Kochia, Hitachi, Ibaraki Prefecture, Japan
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West of Windermere
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World Philosophy Day
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Saint Paul Winter Carnival
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Happy Halloween!
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Crystal clear
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London calling
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International Archaeology Day
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Eastbourne Pier, East Sussex, England
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All going swimmingly
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A magical resting place
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When only a hug will do
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Prehistoric trails
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Dragon waterfall, Venezuela
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Christmas Eve
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Winnie the Pooh Day
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Palace of Westminster, London, England
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