It creates the Earth's magnetic field and is about 1,400 miles (2,300 kilometers) thick. The next layer is the mantle. Many people think of this as lava, but it's actually rock. The rock is so hot ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. A group of scientists has discovered a hidden layer of molten rock under the Earth’s ...

Earth is divided into four layers: the inner core ... pushed upwards by the force of the plates' movement. Tall, steep volcanoes can also form as a result of the denser rock melting and the ...