Polar express: magnetic north pole speeds towards Russia

Surge affects navigation and is believed to be caused by a 'jet' stream in Earth's liquid outer core

Something's up in the Arctic: the north magnetic pole is on the move. But rather than drifting around aimlessly as it has for centuries, the pole has picked up speed and is heading fast for Siberia.

The curious shift has caught scientists' attention and forced them to take rare action. Concerned for those who navigate in the Arctic regions, they have updated the official map of the world's magnetic field to pinpoint the pole's location.