This is the innermost layer of the Earth, and it is also the hottest and most dense layer. It is a solid sphere made up of iron and nickel, and its temperature is estimated to be around 5,500 degrees Celsius.
This is the innermost layer of the Earth, and it is also the hottest and most dense layer. It is a solid sphere made up of iron and nickel, and its temperature is estimated to be around 5,500 degrees Celsius.