Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars. Scientists call this difference crucial to ...
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Earth’s day was only 19 hours long for a billion years, study finds
Researchers from the Institute of Geology and Geophysics at the Chinese Academy of Sciences and Curtin University in ...
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Did the world’s first solar eclipse change Earth’s rotation? Scientists decode a 709 BCE mystery
Ancient Chinese astronomers observed a solar eclipse in 709 BCE with remarkable detail. These old records are now helping scientists understand Earth' ...
The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond during the long days of summer. By Jacey Fortin This article was updated ...
"Some of our ancestors were very skilled observers." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A team of international researchers say they ...
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