The solid metal core of Earth does not rotate perfectly in time with the outer layers of the planet, and new research ...

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.

A diagram explains how the Earth's core can act as a giant dynamo, creating our planet's magnetic fields. NASA/Andrew Z. Colvin, CC BY-SA 4.0 ...

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 ...

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 ...

Behind the expedition to the Earth's mantle 04:06. Earth's inner core, a hot iron ball the size of Pluto, has stopped spinning in the same direction as the rest of the planet and might even be ...

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 Earth's outer core, a band of fluid metal roughly 1,400 miles thick, is composed of mostly iron and nickel. Scientists believe the volatile swirling of this ferrous liquid generates the planet ...

A collaborative research group has succeeded, for the first time, in measuring the speed of sound of pure iron under pressures similar to the Earth's inner core boundary.

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 ...