The historic understanding of the earth’s inner core has been called into question by a group of scientists from the Australian National University after analyzing earthquake data.

Earth’s heart may have a secret chamber. The planet’s inner core isn’t just a solid ball of nickel and iron, researchers say, but contains two layers of its own: a distinct central region ...

Earth's inner core is lopsided: One side grows faster than the other, a new study says. In the core's eastern half, located under Indonesia, 60% more iron crystals form than on the other side.

The solid inner core of Earth is a mere billion years old, new research finds. Modern Earth is like a layer cake, with a solid outer crust, a hot, viscous mantle, a liquid outer core and a solid ...

This undated illustration shows Earth's inner core. Scientists say that around 565 million years ago, the planet's solid inner core emerged, making life on Earth a possibility.

The data implies that in 2010, the inner core reversed its rotational direction compared to the Earth's surface — a phenomenon called backtracking. Now, the inner core is rotating more slowly ...

Earth's core has been a growing topic of interest. It is responsible for the planet's magnetic field, which protects life from the sun's radiation. Despite its importance, ...

The rotation of Earth’s inner core may have paused and it could even go into reverse, new research suggests.. The Earth is formed of the crust, the mantle and the inner and outer cores. The ...

Earth's interior is cooling faster than we previously estimated, according to a recent study, prompting questions about how long people can live on the planet. There's no exact timetable on the ...

A thin, yet dense, sunken ocean floor could be deep between the Earth’s core and mantle. The findings of a new study published April 5 in the journal Science Advances used global-scale seismic ...