A Magnetic Shift. Magnetic north is not fixed like its geographic counterpart, the North Pole. Instead, it meanders, driven by the roiling motion of molten metals in Earth’s outer core.

In ’After the North Pole,' explorer chronicles impossible challenges Nonfiction: An engaging history of the quest to reach the North Pole from a Norwegian explorer who knows all about extreme trips.

Earth’s magnetic north is not static. Like an anchorless buoy pushed by ocean waves, the magnetic field is constantly on the move as liquid iron sloshes around in the planet’s outer core.

For centuries, the magnetic north pole steadily tracked along Canada's northern shore. But in recent decades, it has taken a new path, accelerating across the Arctic Ocean toward Russia's Siberia ...

In Earth’s northern hemisphere, compass needles point toward the magnetic North Pole, and the location changes depending on the shifting contours of the Earth’s magnetic field.

British explorer Sir James Clark Ross discovered the magnetic north pole in 1831 in northern Canada, approximately 1,000 miles (1,609 kilometers) south of the true North Pole.