For the first time, researchers measured the magnetic pull inside a single bacterium, turning a biological mystery into hard ...

Earth’s magnetic field is often described as a steady shield, but the geological record tells a more restless story. Polarity flips, when magnetic north and south swap places, happen several times per ...

Earth’s magnetic field has long been framed as a planetary force field, a protective bubble that keeps the worst of the Sun’s radiation at bay. Increasingly, though, scientists are finding that this ...

Earth’s magnetic shield is shifting in dramatic ways. New data from ESA’s Swarm satellites show that the South Atlantic Anomaly — a vast weak spot in Earth’s magnetic field — has grown by nearly half ...

Rocks from the Apollo missions show there was strong magnetism on the Moon, but researchers now believe these rocks mark extremely rare increases in magnetic strength. As models have long suggested, ...