Earth’s magnetic field has long been framed as a planetary force field, a protective bubble that keeps the worst of the Sun’s radiation at bay. Increasingly, though, scientists are finding that this ...
The Sun's warping of Earth's magnetic protections could explain how aurora occur in other parts of our solar system. Reading time 2 minutes Our Sun is a dynamic star, constantly bombarding our planet ...
Earth’s magnetic field feels permanent, but science tells a far more fragile story. Long before modern life emerged, the invisible shield protecting the planet from solar radiation weakened to a ...
Scientists combined two huge geological records. One tracks the virtual geomagnetic axial dipole moment, a measure of how strong the global magnetic field has been at different times. The other ...
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