Scientists have created a detailed map of the geology beneath Earth's southern hemisphere. They believe an ancient ocean floor may be wrapped around our planet's mysterious core. The new findings could explain why the core is so much hotter than the mantle above it. To learn more details about the mysterious inner workings of our planet’s core, click the link in our bio. (Credit: Edward Garnero and Mingming Li at Arizona State University) #earth #geology #core #sciencediscoveries