Scientists discover deep-Earth structures influencing the planet’s magnetic field
Scientists from the University of Liverpool and the University of Leeds discovered that two massive hot rock structures located about 2 900 km (1 800 miles) beneath Africa and the Pacific Ocean have been influencing Earth’s magnetic field for millions of years. Published in Nature Geoscience on February 5 2026, the study combines palaeomagnetic records and numerical geodynamo models to reveal that uneven heat flow at the core–mantle boundary controls long-term magnetic stability.










