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The mysterious iron ball at the center of the Earth may have stopped spinning and reversed direction
The mysterious iron ball at the center of the Earth may have stopped spinning and reversed direction
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on January 24, 2023 at 10:22 PM A 3D rendering of the Earth’s layers, including its inner core.
Getty Images
Earth’s inner core may have paused and reversed its spin, a new study suggests. Earthquakes and nuclear blasts can send seismic waves through the mysterious solid-iron core. Those waves hint that the core changed direction in the 1970s, and may be undergoing another reversal today.
Living on Earth’s surface, we only see about 0.5% of the planet. Deep below the crust, then the hot rock mantle, then the liquified outer core, lies one of our planet’s biggest mysteries: the solid iron core at the center.
That iron ball — Earth’s inner core — may have recently stopped rotating, then
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