Think Earth is just a static rock? Dive deep, and you'll find a dynamic world where metals leak, water seeps, and its insides ...

Think of the Earth like a geological tootsie pop. If you were to peer more than 3,000 miles below your feet into the planet's center, you'd see a dense, solid ball of iron roughly three-quarters ...

The Earth's interior is composed of four layers ... in diameter. Although this inner core is white hot, the pressure is so high the iron cannot melt. The iron isn't pure—scientists believe ...

This appears to be the case, to a rather stunning extent, in the instance of the reporting this week around new findings that researchers say shows the rotation of Earth’s inner core is slowing ...

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 ...

As much as we have explored and modeled our planet, there are a number of mysteries that surround the Earth's inner core.

The inner core of Earth appears to hold an innermost secret. Geology textbooks almost inevitably include a cutaway diagram of Earth showing four neatly delineated layers: a thin outer shell of ...

You'd need a pretty big drill to make it through Earth's crust.