Inner Earth? Scientists find mountains and plains 660 kilometers beneath Earth’s surface

At school, we are thought that Earth is divided into three layers, which are the cortex, the mantle and the nucleus, which in turn is divided into an internal and external nucleus. A basic and accurate scheme, but that nevertheless leaves out other subtler layers that scientists are now beginning to identify in the deep interior of our planet. A team of geologists has detected a previously unknown layer in the middle of the Earth’s… Seguir leyendo