Earth’s Magnetic Shield Weakens as Atlantic Anomaly Expands by Half the Size of Europe

New data from the European Space Agency’s Swarm satellites reveals a dramatic expansion of the South Atlantic Anomaly, a vast weak spot in the planet’s magnetic field. Researchers have identified a secondary region of rapid weakening southwest of Africa, linked to turbulent activity in Earth’s molten outer core.

Olivia Davis

February 25, 2026352 views

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Omar Khalil2d ago

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