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Using 11 years of magnetic field measurements from the European Space Agency’s Swarm satellite constellation, scientists have discovered that the weak region in Earth’s magnetic field over the South Atlantic – known as the South Atlantic Anomaly – has expanded by an area nearly half the size of continental Europe since 2014.

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Using 11 years of magnetic field measurements from the European Space Agency’s Swarm satellite constellation, scientists have discovered that the weak region in Earth’s magnetic field over the South Atlantic – known as the South Atlantic Anomaly – has expanded by an area nearly half the size of continental Europe since 2014.

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Corey S Powell (coreyspowell@mastodon.social)'s status on Tuesday, 21-Oct-2025 13:24:42 JST Corey S Powell

Earth's magnetic field is changing, with its weak spot (the South Atlantic Anomaly) growing significantly over the past decade.
No, it's not doomsday...but it does affect the radiation doses hitting satellite that pass through that region.
https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Swarm/Swarm_reveals_growing_weak_spot_in_Earth_s_magnetic_field #space #science #nature #tech

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