Reversals of the geomagnetic field

Reversals of the geomagnetic field occur when Earth's magnetic north and south poles switch places. This process happens over thousands of years and is driven by changes in the movements of molten iron in Earth's outer core, which generate our planet's magnetic field. During a reversal, the magnetic field weakens, becomes irregular, and eventually realigns with opposite polarity. These reversals are not predictable and have happened many times in Earth's history. Although they can cause temporary disruptions in navigation and animal instincts, they are a natural part of Earth's geological evolution.