"Fall in Earth's Magnetic Field Is Erratic," published in the journal Science. The goal is to measure changes in Earth's magnetic field, generated by churning currents of molten iron that lie more than 3,000 miles below the surface.
"Fall in Earth's Magnetic Field Is Erratic," published in the journal Science. The goal is to measure changes in Earth's magnetic field, generated by churning currents of molten iron that lie more than 3,000 miles below the surface.
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