A mystery is building deep inside the Earth's core. For decades, scientists have been aware of this mismatch, known as seismic anisotropy, but have been unable to come up with an explanation that is compatible with the facts.

He went on to say, "The question is, does this affect the intensity of the magnetic field?"

These are questions outside the scope of the team's recent article, but Frost said he has started working on new research with a group of geomagnetic researchers to look at potential possibilities.

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