Thanks to a speed-up of Earth's rotation, the length of the astronomical day and the length of the clock day aren't quite ...

The Moon slows down the Earth's rotation a little every year. What would happen if it stopped completely? An astrophysicist ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth is spinning faster this summer, leading astronomers to notice that some days have clocked in at slightly less than the ...

El Niño is best known for reshaping rainfall, heat and storms. It also nudges something far more basic, the speed at which ...

Earth’s rotation subtly changes the length of the day. Now our clocks won’t change with it — at least not for a very long ...

A battle of forces, driven by the motion of Earth’s core, can explain small variations in the planet’s rotation, study finds.

Over the next few months, Earth is expected to spin slightly faster than usual, shaving off tiny slivers of time from our days. On July 9, July 22, and August 5, the planet’s rotation will speed up ...

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Earth takes 24 hours to complete a full rotation in a standard day, equal to exactly 86,400 seconds. July 9 was the first of three days in which a millisecond or more could be shaved off the clock on ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...