Scientists are weighing in on what it might mean.
The rotation of Earth's inner core may have paused and it could even go into reverse, new research suggests.
In research published in the journal Nature Geoscience on Monday, Yi Yang, associate research scientist at Peking University, and Xiaodong Song, Peking University chair professor, studied seismic waves from earthquakes that have passed through the Earth's inner core along similar paths since the 1960s to infer how fast the inner core is spinning.
Science 33 groundbreaking NASA missions in photographs "When you look at the decade between 1980 and 1990 you see clear change but when you see 2010 to 2020 you don't see much change," added Song. "The inner core doesn't come to a full stop," he said. The study's finding, he said,"means that the inner core is now more in sync with the rest of the planet than a decade ago when it was spinning a bit faster."Song and Yang argue that, based on their calculations, a small imbalance in the electromagnetic and gravitational forces could slow and even reverse the inner core's rotation.
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