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Earth’s Pulse

Top of Mind with Julie Rose
  • Jul 20, 2021
  • 12:43
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Just like the beat of a human heart, the planet has a pulse. It's a cycle of high and low geological activity, with a really large spike every 27.5 million years. New York University geologist Michael Rampino charts the Earth’s pulse. (Segment produced by Sam Faulconer) Show More...