Key Takeaways on Earth's Inner Core Earth's inner core is solid and blistering hot. For decades, scientists have known ...

Earth's inner core is known to consist of crystalline iron alloyed with a small amount of nickel and lighter elements, but the shear wave (S wave) travels through the inner core at about half the ...

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. Our history. Research shows there are little-known ...

While Earth's inner core is often portrayed as static and solid, new details paint a very different picture.

This suggests that the inner core is being deformed and changed by the outer core. Using 168 measures of earthquakes taken at Antarctica’s South Sandwich Islands between 1991 and 2024, geophysicists ...

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 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 ...

LOS ANGELES — USC scientists have made a groundbreaking discovery about the nature of the Earth’s enigmatic inner core, revealing for the first time that this 1,500-mile-wide ball of iron and ...

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 ...

The planet’s inner core was previously thought of as a hard, solid sphere. But a new study has found that its edges are softer than realized and actually changing shape.

A new study out this week said that the Earth's inner core is less solid than previously thought. Scientists still have questions, though.

What is happening in Earth's inner core? Discover the implications of its deformation for seismic activity and navigation.