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.

Data from NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) was used to create a water distribution map of the area near the moon's south pole. Credit: NASA's Goddard Space Flight Center ...

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

"For purposes of National Security and Freedom throughout the World, the United States of America feels that the ownership ...