Earth’s Core Cooling Faster Than Thought | Dallas News

Earth’s core is cooling faster than we thought—possibly solidifying completely in just 1.4 billion years, not billions more. This acceleration ties to how heat escapes via radioactive decay in the mantle, which thickens and slows heat flow as it cools. The core powers our magnetic shield; if it weakens, cosmic radiation could threaten life. New insights from mineral perovskite under extreme pressure reveal key heat transfer secrets, reshaping our view of Earth’s long-term evolution—and reminding us that even our planet’s deepest layers are dynamic. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/5f56d5f509b477f9