A giant weak spot in Earth’s magnetic field is now half the size of Europe

A giant weak spot in Earth’s magnetic field is now half the size of Europe Earth’s magnetic field is on the move — and one giant weak spot over the Atlantic is getting dramatically bigger. - Date: - February 25, 2026 - Source: - European Space Agency (ESA) - Summary: - Earth’s magnetic shield is shifting in dramatic ways. New data from ESA’s Swarm satellites show that the South Atlantic Anomaly — a vast weak spot in Earth’s magnetic field — has grown by nearly half the size of continental...