Earth’s inner core has long puzzled scientists because seismic waves move through it unevenly. Compressional waves from ...

Deep inside Earth, researchers see signs that the solid inner core may be arranged in multiple chemical layers far below.

For decades, researchers have known that Earth’s inner core behaves strangely, acting both solid and oddly soft at the same ...

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

Earth's core cannot be made just of iron — it also appears to contain carbon. And our research suggests it may contain a bit of oxygen and possibly silicon as well. When you purchase through links on ...

The solid inner core at the center of the Earth, surrounded by the outer core, mantle and crust. Here’s why: While it is well known that a material must be at or below its freezing temperature to be ...

Earth is fortunate in having a magnetic field: it protects the planet and its life from harmful cosmic radiation. Other planets in our solar system—such as Mars—are constantly bombarded by charged ...

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 ...

Deep beneath our feet, far beyond the reach of drills or submersibles, Earth hides a solid metal heart that behaves in ways geophysicists have struggled to explain. New experiments now suggest that a ...