Science | The planet’s magnetic field fluctuates but continues to weaken
by Julie Borg
Posted 3/29/18, 04:03 pm
The strength of Earth’s magnetic field has been weakening for 160 years, and some scientists worry the planet’s magnetic poles may soon flip or reverse. In a recent study, researchers from New York’s University of Rochester analyzed data from as far back as the first millennium A.D. to try to understand better the magnetic field decay. They discovered a pattern of fluctuations in magnetic field direction and intensity but said it is too early to know if a full-blown pole reversal is on the horizon.