Pangea, Rodinia, Gondwana: The Complete History Of Earth's Supercontinents

Every three hundred million years, Earth's continents gather into a single landmass. Every time they do, most life dies. Every time they break apart, evolution explodes. This has happened five times. In March 2026, Harvard University published evidence in Science proving this machine started three and a half billion years ago — half a billion years earlier than anyone believed. This episode covers the complete history: from the first tectonic motion on a planet still cooling from its formation, through Vaalbara, Columbia, Rodinia, the Snowball Earths, Gondwana, and Pangea, to the prediction for the next supercontinent — and the 2023 Nature Geoscience study showing it will be largely uninhabitable for mammals. Four billion years. One machine. Still running. SUBSCRIBE    / @chroniclesplanetearth   for deep Earth science told from the geological record outward.