Earth's rotating inner core is starting to slow down — and it could alter the length of our days.

A new study confirms that Earth's inner core has been rotating more slowly than usual since 2010. This mysterious "backtracking" could also end up slightly altering the planet's overall rotation, lengthening our days.

https://www.livescience.com/planet-earth/geology/earths-rotating-inner-core-is-starting-to-slow-down-and-it-could-alter-the-length-of-our-days

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Earth's rotating inner core is starting to slow down — and it could alter the length of our days

^{Harry Baker (Live Science)}