Earth is made up of several layers: the lithosphere, asthenosphere, lower mantle (also known as mesospheric mantle), outer core and inner core.

A gold reservoir is hidden in Earth's core and it's leaking into the mantle, says new study A new study claims that Earth is ...

One of geology’s basic principles is that the Earth is made up of four layers: the crust, the mantle, the outer core, and the inner core. But this may be squashed in light of a new study that ...

Scientists study the inner core to learn how Earth’s deep interior formed and how activity connects across all the planet’s subsurface layers. The mysterious region where the liquid outer core ...

The Earth’s interior is far more complex than what we are taught in school. Instead of just three layers- crust, mantle, and core- the Earth is made up of multiple intricate layers, each with ...

Earth’s core is pretty dynamic. Its spin speeds up and slows down based on how its two primary layers are behaving. As we improve the waveform techniques used to study the deepest layer ...

Earth Science Earth’s Inner Core Has Warped Over the Past Two Decades, ... the inner core’s shape could be changing over time because of complex interactions among the Earth’s layers.

By tracking seismic waves from earthquakes that have passed through the Earth’s inner core along similar paths since 1964, the authors of the 2023 study found that the spin followed a 70-year cycle.

What is increasingly clear is that the inner core is susceptible in different ways to activity in the layers of Earth that encircle it. “The mechanics are that the outer core is circulating and ...

The new research adds to the mysteries of the planet’s deepest interior region. By Kenneth Chang The inner core at the center of the Earth, a ball of iron and nickel about 1,500 miles wide, may ...

These were recorded on a seismometer in Alaska after traveling through the Earth’s interior. If the inner core is rotating at a different speed than the layers above it, then the repeated ...

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.