The Earth's interior is ... The deepest layer is a solid iron ball, about 1,500 miles (2,400 kilometers) in diameter. Although this inner core is white hot, the pressure is so high the iron ...

The Earth's structure. Planet Earth is not a solid ball of rock, it's made up of different layers ... core is liquid iron and nickel and generates the Earth's magnetic field. And the inner ...

Inner core The inner core is 2900 km below the Earth’s surface, in the centre of the Earth, and is the hottest layer. It is spherical and solid and made up of iron and nickel. Its temperatures ...

Over time, Earth's interior—which is made mostly of silicate rocks and metals—differentiated into four layers. At the planet's heart lies the inner core, a solid sphere of iron and nickel that ...

WASHINGTON, D.C. — Earth ... internal layer — or by material flowing in the outer core, Vidale says. This is not the first time researchers have reported that the inner core’s surface ...

Earth's inner core appears to have another even more inner core within it. "Traditionally we've been taught the Earth has four main layers: the crust, the mantle, the outer core and the inner core ...

Geophysicists studying seismic waves from earthquakes have found evidence suggesting that Earth's inner core ... internal layer — or by material flowing in the outer core.

What is increasingly clear is that the inner core is susceptible in different ways to activity in the layers of Earth that encircle it. "The mechanics are that the outer core is circulating and ...

Deep within Earth 's fiery belly, beneath layers of molten rock, a peculiar jig is underway. Our planet's inner core, a solid iron ball bigger than Pluto, isn't just spinning – it's doing a ...