Knowing what the magnetic field did in the past can help us predict its future. And some studies suggest our planet's magnetic field is weakening over time. The magnetic field shields us from deadly ...

The South Atlantic Anomaly (SAA), a known region of Earth’s magnetic field weakness, has been under the observation of the European Space Agency’s Swarm mission for over a decade. New findings reveal ...

The weak spot in Earth’s magnetic field, a region over the South Atlantic where the field’s strength is significantly reduced compared to its surrounding area, has grown by an area nearly the size of ...

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet's magnetic field nearly collapsed. What followed was a cascade of environmental and biological changes that ...