Of all Earth’s layers, the inner core is the most remote and mysterious. This solid sphere of iron and nickel is about 70% ...

That’s the antipode, or opposite point on Earth’s surface, from my town. But I only had a garden spade to move the earth.

The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...

Led by Curtin University geologists Chris Kirkland and Tim Johnson, a research team unearthed this primeval crater beneath ...

Of all Earth’s layers, the inner core is the most remote and mysterious. This solid sphere of iron and nickel is about 70% the size of the moon, with a radius of approximately 759 miles (1,221 ...