Not only is Earth's inner core spinning and growing, but it's also changing shape, according to new research. Our planet's inner core is a hot, solid ball of iron that is roughly 1,500 miles wide.

This inner core has intrigued researchers since its discovery by Danish seismologist Inge Lehmann in 1936, and how it moves — ...

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

Deeper still is the Earth's hot, liquid iron-nickel outer core, larger than the moon. Like a peach pit, at the very center is the inner core, some 1,500 miles across. The ways seismic waves reflect ...

The Earth's internal layers including the mantle, outer core and inner core. New research shows the inner core undergoes structural transformation likely caused by outer core disturbance.

Raven Ross shares her favorite full-body Pilates magic circle exercises — including 2 exercises that are a great warmup for ...

Although this inner core is white hot, the pressure is so high the iron cannot melt. The iron isn't pure—scientists believe it contains sulfur and nickel, plus smaller amounts of other elements.

Yan said that the one-sided magnetic field could arise if Mars' inner core was liquid. "The logic here is that with no solid inner core, it's much easier to produce hemispheric (one-sided ...

Energy is needed to keep the dynamo running. This energy comes from the release of heat from the surface of the solid inner core. Although it may seem counterintuitive, material from the liquid ...