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 ...

Exploring Earth's deep interior is a far bigger challenge than exploring the solar system. While we have traveled 25 billion ...

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

Learn about the continent-sized rocks hidden deep within Earth's mantle that have influenced the magnetic field for millions ...

Ancient rocks show Earth’s magnetic field followed deep heat patterns inside the planet for hundreds of millions of years.

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 ...

The magnetic barrier that protects Earthlings from radiation almost collapsed some 565 million years ago. Here’s what saved it.

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 and atmospheric oxygen appear to have moved in sync for half a billion years, pointing to a surprising connection between the planet’s deep interior and life-supporting ...