Earth’s Magnetic Field Flipped 2 Billion Years Ago | Texas News

Scientists have uncovered shocking evidence that Earth’s magnetic field flipped poles as far back as two billion years ago—pushing the earliest known reversal by nearly half a billion years. By studying iron-rich minerals in ancient South African rocks, researchers found these flips were far more frequent in Earth’s early history than today. This dynamic magnetic shield, crucial for protecting life from solar radiation, reveals how deeply intertwined geology and biology are. With more rock samples still to analyze, scientists aim to reconstruct the full evolution of Earth’s magnetic field—and what it means for life’s survival across billions of years. 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/05713b0b92932ccd