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.

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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 movement of these tectonic plates leads to earthquakes and volcanoes forming. Inner core The inner core is 2900 km below the Earth’s surface, in the centre of the Earth, and is the hottest ...

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.

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.

The outer core is liquid iron and nickel and generates the Earth's magnetic field. And the inner core is made of solid iron and nickel. The surface of the earth is constantly changing. It's the ...

If core muscles are tired or weak, the ligaments in your back take over and can become strained. Exercises like side planks and dead bugs work the deep muscles of the inner core, like the pelvic ...

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 ...