First Measurement of Earth's Inner Magnetism Made

For the first time ever, a scientist has measured the strength of the magnetic field inside Earth's core, some 1,800 miles (2,896 kilometers) underground.
It turns out the magnetic field in Earth's core is about 50 times stronger than on the planet's surface, and the new number may help scientists narrow down the possible heat sources that fuel the mysterious processes of the planet's interior... Read More

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