Earth's Second Magnetic Field Captured in Satellite Images

Earth is a pretty wild place to live. Not only does our home planet orbit the sun at the perfect distance to sustain life, it even has its own magnetic force field that keeps us from being deep fried by our star’s radiation.

This planetary shield is primarily generated by the massive amounts of superheated, liquid iron in the Earth’s core. But data from the European Space Agency’s Swarm satellites suggests that our planet’s oceans are generating a magnetic barrier of their own. While...

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