It's time to recalibrate the navigation systems on ships, airplanes, and (given the time of year) Santa's sleigh: the position of the magnetic North Pole is ... you're using a compass or a GPS ...

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.

It's time to recalibrate the navigation systems on ships, airplanes, as the position of the magnetic North Pole is officially being changed ... If you're using a compass or a GPS system, knowing ...