That is the core of the earth.
the core
This is the inner core.
The inner core is the innermost layer of the earth. It is dense and solid, and is 1,200km thick. It is made of iron and nickel and is a solid ball of metal. It's also the hottest layer of all. It has the most pressure than all the other layers.
The thin, solid, outermost layer of the Earth is officially known as the crust.
The very center of the Earth consists of the solid inner core (Ni-Fe alloy) and the liquid outer core (Ni, Fe) that spins and as a giant dynamo gives rise to the existence of the Earth magnetic field.
the core
core
A dense sphere of solid iron and nickel at the center of earth.
This is the inner core.
inner core
The spherical solid core of the earth. It is an alloy composed mostly of nickel and iron.
The crust is the least dense portion of the solid Earth because it is the thinnest layer.
The layers between the Earth's surface and its center include the crust, mantle, outer core, and inner core. The crust is the Earth's outer solid shell, followed by the mantle, which is a semi-solid layer made of rock. The outer core is a liquid layer of iron and nickel, while the inner core is a solid metallic sphere at the very center of the Earth.
The Inner Core. Earth's Layers in order Crust Mantle Outer Core Inner Core
The inner core is the innermost layer of the earth. It is dense and solid, and is 1,200km thick. It is made of iron and nickel and is a solid ball of metal. It's also the hottest layer of all. It has the most pressure than all the other layers.
The thin, solid, outermost layer of the Earth is officially known as the crust.
a solid ball of iron