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 ...

Situated between the mantle and the inner core, the Earth's outer core is a liquid layer of the Earth's core. It is mostly made up of iron and nickel, with little amounts of silicon and oxygen ...

It seems as if Earth's atmosphere is incredibly thin, wrapped tightly around our planet. In fact, the atmosphere consists of multiple layers, with some scientists of the opinion that the ...