It's time to recalibrate the navigation systems on ships, airplanes, and (given the time of year) Santa's sleigh: the ...

If you ever travel back in time to hang out with Homo sapiens around 41,000 years ago, pack some sunscreen – or better yet, a ...

"The same is true with the magnetic field. If you're not sustaining it by these fluid motions, it will gradually decay away and disappear." Where is the magnetic north pole? The magnetic north ...