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.

The forecast for the first of three storms predicts a mix of rain and 1 to 3 inches of snow over parts of the Midwest and ...

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this ...