"Scientists accelerated the update of a model of Earth’s fluctuating magnetic field, which is needed to keep navigational systems functioning. Many wondered what’s happening inside the planet’s core."

"The north magnetic pole is restless.

Distinct from the geographic North Pole, where all the lines of longitude meet at the top of the world, the magnetic pole is the point that a compass recognizes as north. At the moment, it’s located four degrees south of the geographic North Pole, which lies in the Arctic Ocean at 90 degrees north.

But that wasn’t always the case."

Shannon Hall reports for the New York Times February 4, 2019. [2]