Planetary warning! Something ‘big’ is moving inside Earth; here’s what scientists just found

A groundbreaking study by ETH Zurich reveals that solid rock in Earth's D" layer, located deep within the mantle, can move like a fluid while remaining solid. Researchers used diamond anvil cells and X-ray diffraction to observe mineral behavior under extreme conditions, explaining seismic wave anomalies and linking deep mantle processes to plate tectonics, volcanism, and Earth's magnetic field.