Earth’s magnetic north pole has been shifting gradually for centuries ... using Santa Claus as their tongue-in-cheek example but nevertheless invoking accurate measurements: Imagine someone ...

From pinpointing the pole’s precise location to predicting ... it’s a window into the dynamics of planetary survival. Mars, for example, lost its magnetic field billions of years ago, leaving ...

For example, a question about atoms could include ... The Earth has north and south magnetic poles. The needle of the compass follows the magnetic field lines. The N pole of the magnet points ...

Earth’s magnetic poles are constantly on the move, but they haven’t drifted far enough to actually flip in the modern age. Researchers know that Earth’s poles have flipped in the past ...

It has an invisible magnetic field ... may be attracted to or repelled from another magnet. For example, bringing a north pole and a north pole together will cause the magnets to push away ...