Earth’s PulseTop of Mind with Julie Rose • Season 1, Episode 1646, Segment 2
Jul 20, 2021 • 13m
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)