The Earth's magnetic field and oxygen evolved together over 540 million years, according to a major NASA study.

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

Protective force fields exist and you’re already living inside one. About 1,800 miles beneath the ground you’ll reach the border of Earth’s outer core, a subterranean ocean of liquid iron and nickel 1 ...

Deep inside Earth, two massive hot rock structures have been quietly shaping the planet’s magnetic field for millions of ...

The continent-sized blobs are much hotter than the lower mantle, creating a significant temperature gradient in the rocky mantle. According to Biggin, a geologist at the University of Liverpool in the ...

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

Two enormous and enigmatic masses of hot rock near the planet's core may play a crucial role in generating the Earth's ...

Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature. Every so often, the magnetic north and south poles swap places in what are ...

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

A giant dent in Earth's magnetic field is continuing to expand, according to the latest data from a trio of satellites monitoring our world. It's called the South Atlantic Anomaly, stretching across ...

Geophysicists from ETH Zurich and SUSTech, China, have demonstrated the dynamo effect of the Earth’s core in a model in which viscosity has no influence, as is the correct physical regime for the ...

Earth’s magnetic field is often described as a steady shield, but the geological record tells a more restless story. Polarity ...