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.

Earth’s inner core is changing shape, scientists have found. The discovery resolves a long-simmering controversy about what’s happening at the heart of the planet — which was long thought to ...

Now, scientists believe that Earth’s inner core might be less solid than we previously thought. The findings are detailed in a study published February 10 in the journal Nature Geoscience and ...

Previous research has found that the rotation of the inner core is slowing down relative to the rotation of the external crust, which may cause minute changes in Earth’s rotation and subtly affect the ...

As Earth’s solid inner core spins, the molten outer core ... Once they knew the core’s rotation speed, they could model its position and then compare different PKIKP waves that reached the ...

By studying these dynamics, scientists aim to unlock new insights into the inner workings of our planet. The World Magnetic Model (WMM) has long been the standard for mapping Earth’s magnetic ...

The surface of Earth's inner core may be shape-shifting, new research suggests. The study, published Feb. 10 in the journal Nature, looked at earthquake waves that have skimmed the edge of the ...

These findings could lead to a better understanding of the inner workings of our planet and how life here will evolve over time. The Earth is made up of different layers. The outermost is the crust, ...

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 ...