In a breakthrough study, scientists have discovered that the Earth’s geomagnetic field has been shielding the planet from space radiation for nearly 500 million years. The research, published in the journal Nature, provides unprecedented insight into the history of our planet’s magnetic shield, which shields us from potentially damaging cosmic radiation. The findings suggest that the geomagnetic field has been remarkably stable for the past 500 million years, and that its shielding power has not significantly changed over time. This is an incredibly exciting development that will help us better understand the dynamics of the Earth’s magnetic field and its ability to protect us from cosmic radiation.

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source: Phys.org