Learn how some of Earth’s magnetic field flips last longer than others, weakening our defenses against cosmic radiation.

Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature.

A team of geologists found for the first time evidence linking regions of low seismic velocity and the shape of the Earth’s magnetic field.

Earth’s magnetic field can linger in a weakened, unstable state for tens of thousands of years before fully flipping.

Deep beneath the ocean floor, ancient sediments hint that Earth’s magnetic field sometimes changed far more slowly than expected.

While we have sent probes billions of kilometers into interstellar space, humans have barely scratched the surface of our own ...

Earth’s magnetic field is easy to forget. It doesn’t make noise, it doesn’t flash, and it doesn’t ask for attention. Yet it ...

Scientists are mapping the Milky Way galaxy’s invisible magnetic field, revealing how it holds the galaxy together and ...

Earth’s magnetic field has flipped about 170 times in the last 100 m years, and the next reversal is not a matter of if but ...

Something unusual keeps turning up in marine sediments. These are large crystals of magnetite, formed by biology rather than geology, and preserved fo.

Earth's magnetic poles flip in a process called a geomagnetic reversal. The planet's magnetic field is generated by chaotic flows of molten metal deep inside Earth's core.