Peeling back each of Earth's layers reveals a lot about our planet's formation. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Earth's ...

approximately 75% of all the air in the atmosphere is found in this layer. The troposphere extends from Earth's surface to approximately 5 to 9 miles (8 to 14.5 km) high. Did you know? According ...

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 ...

For decades, scientists have debated the nature and origin of what some experts consider the most anomalous and enigmatic layer of Earth’s deep interior: the boundary between its scorching-hot ...

The Earth's cool, thin outer layer, known as the crust, mostly consists of solid rock and is generally around 20-30 miles thick in continental areas, although in oceanic regions the average ...

Back in my day, there were only four layers of Earth: the crust, mantle, liquid outer core and solid inner core. Now, scientists have revealed a new, distinct layer within our planet’s inner ...

But new research finds that around 93 miles (150 kilometers) below Earth's surface, there is a worldwide layer of melted rock. Discovering this gooey layer will help researchers better understand ...