Surprisingly we do not have much information about the center of the planet that we live on. What lies beneath our feet is not well known.

As a planet grows, it accumulates material from its surroundings, so its composition reflects the environment in which it formed.

Earth's core is characterized by extremely high pressure and temperature. It is composed of a liquid outer core and solid inner core.

3,200 miles beneath Earth’s surface lies the inner core, a ball-shaped mass of mostly iron that is responsible for Earth’s magnetic field.