Your navigation system just got a critical update, one that happens periodically because Earth’s magnetic north pole keeps moving. Here’s what to know.

Unlike the geographic North Pole, which marks a fixed location, the magnetic north pole’s position is determined by Earth’s magnetic field, which is in constant motion. Over the past few ...

place the plotting compass near the magnet on a piece of paper mark the direction the compass needle points move the plotting compass to many different positions in the magnetic field, marking the ...

The sun is on the verge of a significant event: a magnetic field reversal. The sun undergoes such a reversal every 11 years, which marks an important stage in the solar cycle. The shift in ...