Earth's Inner Core Is Doing Something Weird
Surface-dwellers know that Earth spins on its axis once about every 24 hours. But the inner core is a roughly moon-size ball of iron floating within an ocean of molten metal, which means it is free to turn independently from our planet's large-scale spin, a phenomenon known as super-rotation. And how fast it's going has been hotly debated.
August 20, 2019 at 12:34AM
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