South Atlantic Anomaly: Growing Weak Spot in Earth's Magnetic Shield
Using 11 years of data from ESA's Swarm satellites, scientists have found that the South Atlantic Anomaly, a weak spot in Earth's magnetic field, has expanded significantly since 2014, with faster weakening near Africa since 2020, which poses risks for satellites and space safety. The study also highlights dynamic changes in Earth's magnetic field over Siberia and Canada, linked to complex processes in Earth's core.