Earth’s magnetic field nearly collapsed long ago. What saved it explains why life survived and why the planet remains ...

A massive and evolving weak spot in Earth’s magnetic field, known as the South Atlantic Anomaly (SAA), has caught the attention of NASA scientists. This “dent” in our planet's magnetic shield poses ...

Scientists have known for decades that many animals use the Earth's magnetic field for navigation. It's less clear how they do it. A new study suggests earthworms may be a good way to figure it out.

Geophysicists have modeled how Earth’s magnetic field could form even when its core was fully liquid. By removing the effects of viscosity in their simulation, they revealed a self-sustaining dynamo ...

Using 11 years of magnetic field measurements from the European Space Agency's Swarm satellite constellation, scientists have discovered that the weak region in Earth's magnetic field over the South ...