The Earth has a layered structure made up of the core ... The inner core is made from solid iron and nickel. In this diagram, the red lines represent the edges of the tectonic plates that make ...

More than a mere quirk in our planet's internal structure, the doughnut's composition could enhance our understanding of Earth's magnetic field—the shield wrapped around us that protects life on ...

Alternatively, as shown in the diagram, convection currents under the Earth’s crust transfer heat, which rises through the surface and cools back down in a circular motion. The convection ...