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 ...

Keep reading to learn more about Earth's different layers, its atmosphere, and what makes the "blue planet" unique. Earth is made out of different layers, and those layers get hotter and more ...

Geologists have calculated the age of Earth at 4.6 billion years ... Even the Greeks and Romans realized that layers of sediment in rock signified old age. But it wasn't until the late 1700s ...

The Earth is made up of different layers: Therefore, instead of tectonic plates moving because of the convection currents, evidence suggests it is the plates that drive the convection. Slab pull ...

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 ...

Although we’ve hardly scratched Earth’s surface (the center lies nearly 4,000 miles deep, and the deepest borehole penetrated just 7.6 miles), scientists can study ... on the likely makeup of the ...

Many parts of Earth are covered and protected by a layer of organisms called a biocrust. The layer acts as a skin for the Earth, protecting landscapes and reducing long-term damage. But climate ...

The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around ... By the time of the moon-forming impact, the Earth was already separated into these rock and metal layers.