The innermost layer of the Earth that extends from a depth of about 5,100 to 6,371 kilometers. It is made up of solid iron and nickel and is the hottest layer of the Earth's interior, with temperatures reaching up to 5,500 degrees Celsius.
The innermost layer of the Earth that extends from a depth of about 5,100 to 6,371 kilometers. It is made up of solid iron and nickel and is the hottest layer of the Earth's interior, with temperatures reaching up to 5,500 degrees Celsius.