If it does indeed prove true that the Earth’s true core is a ball of iron, then it could help scientists better understand how our planet came to exist in the first place. Joshua Hawkins Writer ...

Inside the belly of planet Earth, a giant solid ball of metal is surrounded by a swooshing layer of liquid iron and nickel, making up the two innermost stages of Earth’s geological layers.

Then there is the outer core, made of liquid metal, and the inner core, a solid ball ... forces." Earth's core has been a growing topic of interest. It is responsible for the planet's magnetic ...