Iron is the main ingredient.
Molten iron and nickel.
It is mostly gas, but it has a solid core.
Venus is made up of an iron core and rocky mantle. While it's atmosphere mostly consists of carbon dioxide and nitrogen.
The Earth is made up of several layers, divided by sub-layers, divided by even more sub-layers. There is the core, which is mostly made up of solid iron; the outer core which is up to 10% liquid; the lower mantle which is ductile, the upper mantle and then the crust which on average is about 40 km thick. The outer core is called the 'liquid outer core' but is still made up of mostly solid rock.
Comets are mostly made up of ice. They usually have a metallic core high in nickel. The tail of a comet is actually the ice melting as it passes a heat source.
Mercury is a rocky planet with a huge iron core which makes up a large part of its interior.
I believe it is IRON.
The Inner (solid) and Outter (liquid) Core are made up of Nickel and Iron.
It is thought to be mostly iron.
The Inner Core
The core
Earth is mas mostly of silicate minerals with a core made mostly of iron and nickel.
it is mostly made up of water ice and the center is believed to be metalic
Our earth is mostly made up of silicon oxide (sand) and magnesium oxide, extending from the outer core to the crust. The inner core is mostly iron, enriched to 4% nickel. About 70% of the surface is covered with water.
It is mostly gas, but it has a solid core.
Venus is made up of an iron core and rocky mantle. While it's atmosphere mostly consists of carbon dioxide and nitrogen.
scientists think that the earths core is made up of mostly iron, and contains smaller amounts of copper nickel.
basalt and granite