Winter in the northern hemisphere and summer in the southern hemisphere are both coming to an end. That means the days and nights are becoming roughly equal in length, and the path the sun traces across the sky is changing.
Earth Sciences
Mar 22, 2021
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Saturn is famous for its bright, glorious rings but in this picture, taken during Saturn's 2009 equinox, the rings are cast in a different light as sunlight hits the rings edge-on.
Space Exploration
Mar 19, 2019
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From the Neolithic to present times, the amount of sunlight we see in a day has had a profound impact on human culture. We are fast approaching the winter solstice for the Northern hemisphere, which takes place on December ...
Astronomy
Dec 21, 2018
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It's the time of the equinox or more specifically the spring equinox for us in the southern hemisphere.
Space Exploration
Sep 22, 2014
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Captured on January 15, this narrow-angle Cassini image shows an outer portion of Saturn's A ring on the left and the ropy F ring crossing on the right. The thin black line near the A ring's bright edge is the Keeler Gap, ...
Space Exploration
Apr 25, 2013
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0
(Phys.org)—Twice a year, for three weeks near the equinox, NASA's Solar Dynamics Observatory (SDO) moves into its eclipse season—a time when Earth blocks its view of the sun for a period of time each day.
Space Exploration
Sep 7, 2012
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University of Kansas anthropologist and Maya scholar John Hoopes and his students are watching predicted doomsday dates such as 11/11/11 and Dec. 21, 2012, with considerable skepticism.
Archaeology
Nov 3, 2011
4
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Spring has sprung!
Earth Sciences
Mar 20, 2023
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