The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...

The core of the Earth is undergoing surprise structural changes, researchers believe. A new study has seen scientists unexpectedly find that the inner core of our planet is changing its physical ...

Scientists believe they may affect the planet's magnetic field because of the way they influence heat flow from Earth's core. There's a lot of debate about what LLVPs are.

Electricity and magnetism were imprinted into our surroundings from the beginning. Five billion years ago when the new-born Earth was a hot plasma of swirling electrical currents, these flows ...