Researchers are now trying to understand the "innermost inner core" of the Earth by studying how seismic waves travel through ...

The Earth's structure. Planet Earth is not a solid ball of rock, it's made up of different layers. The crust of ... from solid iron and nickel. In this diagram, the red lines represent the edges ...

The Earth is made up of different layers: Therefore, instead of tectonic plates moving because of the convection currents, evidence suggests it is the plates that drive the convection. Slab pull ...