Geophysics

A look at the interior of the Earth a billion years ago: Tangled magnetic field lines inside the core are linked to the external magnetic field. (Scientifically correct image from a study simulation). Credit: ETH Zurich / SUS Tech

Earth's ancient shield: Scientists crack billion-year-old mystery of magnetic field

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A new model reveals how the Earth's core maintained a stable magnetic field even before the inner core formed, providing insights into the origins of life and our technological future.
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