The Earth's inner core was once liquid, but has turned solid over time. As the Earth gradually cools, the inner core expands outwards at the surrounding iron-rich liquid "freezes." That said, it ...

We are unsure of the nature of the strange doughnut-shaped structure discovered inside the Earth's core. We thought Earth had ...

While most of us take the ground beneath our feet for granted, written within its complex layers, like the pages of a book, is Earth's history.

Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could ...

Nobody knew what they are, and whether they are only a temporary phenomenon, or if they have been sitting there for millions ...

The Earth has a shell-like structure. It is divided into a core (inner and outer core), a mantle (lower and upper mantle, separated by a transition zone), and the earth's crust. You are free to ...

What's more, they believe that the core is around 18 percent of Mars's radius, pretty similar in size to Earth's inner core, which is around 19 percent of Earth's radius. While the proportions are ...

Understanding where Earth's essential elements came from—and why some are missing—has long puzzled scientists. Now, a new ...

Research using ultrafast X-ray spectroscopy unveils iron's melting and phase behaviour at Earth core pressures.