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Has Earth’s inner core stopped its strange spin?

Earthquake data hint that the inner core stopped rotating faster than the rest of the planet in 2009, but not all researchers agree.
  1. Alexandra Witze
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Thousands of kilometres beneath your feet, Earth’s interior might be doing something very weird. Many scientists think that the inner core spins faster than the rest of the planet — but sometime in the past decade, according to a study, it apparently stopped doing so.

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Nature 614, 19 (2023)

doi: https://doi.org/10.1038/d41586-023-00167-1

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