In an area stretching from Africa to South America, Earth’s magnetic field is gradually weakening. This strange behaviour has geophysicists puzzled and is causing technical disturbances in satellites orbiting Earth. ESA’s Swarm constellation is improving our understanding of this area, known as the ‘South Atlantic Anomaly’ 👉 https://www.esa.int/Applications/Observing_the_Earth/Swarm/Swarm_probes_weakening_of_Earth_s_magnetic_field | ESA - European Space Agency