Earths core may have begun spinning in reverse USA TODAY

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The earth's inner core may have stopped turning and could go into reverse, said researchers who studied seismic waves from decades of earthquakes. • RELATED: Green comet to pass Earth, won't be back for another 50,000 years https://bit.ly/3HB6m4T • Planet Earth's inner core may have stopped turning and could go into reverse, according to a study published this week. • Earth is formed of three layers: the crust, the mantle, and the core. • Made almost entirely of metal – specifically, iron and nickel, its inner core rests 3,200 miles below the crust, separated from the mantle by the liquid outer core which allows the inner core to rotate at a different speed from the planet's rotation. • » Subscribe to USA TODAY: http://bit.ly/1xa3XAh • » Watch more on this and other topics from USA TODAY: https://bit.ly/3wzhDfW • » USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR. • #Earth #Science #Discovery

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