The inner core of the Earth appears to hold an innermost secret. Geology textbooks almost inevitably include a cutaway diagram of the Earth showing four neatly delineated layers: a thin outer ...

A new region of Earth's core could help scientists understand our magnetic field—the shield that protects life on the surface. ... A diagram showing seismic waves traveling through Earth.

The solid metal core of Earth does not rotate perfectly in time with the outer layers of the planet, and new research confirms that it has now reversed direction.

Scientists believe that Earth’s core is a massive ball of iron.However, a new discovery suggests that the Earth’s core is surrounded by an unexpected ancient structure. A high-resolution map ...

Earth's inner core is undergoing structural transformation. Located 3,000 miles below the Earth's surface, the inner core is anchored by gravity within the molten liquid outer core. Until now the ...

The inner core is made of solid iron-nickel about 3,000 miles below the surface of the Earth. Scientists believe that the inner core’s rotation began to slow down in 2010 , but what that really ...

Scientists say they’ve confirmed Earth’s inner core has been slowing down. Here’s what it could mean — and why the topic has been the subject of fierce debate.

An analysis of Hawaii’s volcanic rocks revealed Earth’s core is leaking gold and other precious metals, a study found. The elements emerge when ocean islands form.

You might think the Earth's largest gold reserves are locked up at Fort Knox. But Earth's core is rich with the precious metal - and it's slowly making its way up towards us.

A study published in June 2022 examined seismic data from nuclear bomb tests to closely track how the inner core rotation changed from 1969 to 1974. Their results show that the core was ...