For a long time, scientists thought the Earth's inner core was a solid ball of metal, sort of like a planet within a planet that sits some 3,000 miles (4,828 kilometers) below the surface.

New research from an international study reveals that Earth’s inner core, a ball of mostly iron roughly the size of Pluto, isn’t behaving the way scientists thought. It appears to be both ...

A new study of decades worth of seismogram data shows that the surface of Earth’s iron and nickel core is more malleable than scientists thought.

A groundbreaking study reveals that the Moon has a solid inner core with a density comparable to iron, reshaping our ...

The Earth's inner core, long considered a solid and stable sphere, may be quite different. A recent study suggests that its surface is undergoing structural transformations, challenging our ...

New research reveals Earth’s inner core may be deforming due to outer core turbulence, altering its structure and rotation. A new study reveals that the Earth’s inner core is undergoing a structural ...

For a long time, scientists thought the Earth's inner core was a solid ball of metal, sort of like a planet within a planet that sits some 3,000 miles (4,828 kilometers) below the surface.

The next layer is the mantle, which makes up most of Earth's volume and is composed of dense, semi-solid rock. Then there is the outer core, made of liquid metal, and the inner core, a solid ball ...

The inner core of the Earth, which is found about 3,000 miles (4,828 kilometers) under the surface, sits within a molten outer core, and is anchored by gravity. Once commonly thought of as a solid ...