Earth’s inner core began to solidify sometime after 565 million years ago — just in time to prevent the collapse of the planet’s magnetic field, a study finds.

New research published by the University of Texas Institute for Geophysics offers a compelling explanation for the strange nature of Mars’ ancient magnetic field. The study suggests that the Red ...

The movements within Earth’s molten core have been resisting efforts to understand them for a long time, but agreement between a mathematical and physical model has led two physicists to claim they ...

Supercomputer models of Earth's magnetic field. NASA. Around 3,000km (1,900 miles) below our feet—270 times further down than the deepest part of the ocean—is the start of the Earth's core, a ...

A doughnut-shaped region thousands of kilometers beneath our feet within Earth's liquid core has been discovered, providing new clues about the dynamics of our planet's magnetic field.

Lopsided growth of the Earth’s core could explain why its magnetic field reverses direction every few hundred thousand years. If it happened now, we would be exposed to solar winds capable of ...