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:
-
Grand Teton National Park, Wyoming
-
Cherry blossoms at Tom McCall Waterfront Park, Portland, Oregon
-
World Bicycle Day
-
Scottish Blackface sheep, Aberdeenshire, Scotland
-
White Desert National Park, Egypt
-
World Childrens Day
-
International Day of the Tropics
-
Happy 50th for the National Trails System!
-
Valentines Day
-
World Numbat Day
-
Don t go chasing waterfalls
-
One for the books
-
The glowing waters of the Matsu Islands
-
A theatrical dream
-
American Eagle Day
-
Tough turf
-
Terraced rice fields, Yuanyang County, China
-
Sweet! It’s maple syrup season
-
Daylight saving time begins
-
Wartburg Castle overlooking Thuringian Forest in Germany
-
In Texas, even the riverbend is big
-
A reflection of Europe s past
-
Who created the Easter Bunny?
-
A path lain with petals
-
Infrared Jupiter, erupting Io
-
Polar bear season in Manitoba
-
Guiding ships to safety
-
International Day of Peace
-
The view will stop you in your tracks
-
Colorful cows of the reef
Bing Wallpaper Gallery

