A new study shows that the inner core changed shape in just a few decades, challenging previous assumptions and revealing ...

Cross-section of the Earth's interior: crust, upper- and lower-mantle, and outer- and inner-cores. Journalists may use this image only with appropriate credit.

If you were to slice through it, you would see the Earth is divided into distinct layers. On top is the relatively ... and the core will be a reference section for decades to come.

The Earth has a layered structure made up of the core, the mantle and the crust. Different elements are present in different parts of the Earth’s structure. The crust is made from enormous ...