What is Earth Nucleus? »Its Definition and Meaning

Our planet (the nucleus) is a huge sphere of metal material that has a radius of approximately 3,485 km , that is, a size similar to the planet Mars .Density varies, from approximately 9 on the outer edge to 12 on the inner side.It is mainly composed of iron and nickel, with aggregates of copper, oxygen and sulfur.

This was formed along with this about five billion years ago years after the explosion of a supernova.The leftover heavy metals agglomerated in a disk, spinning around the sun The core composed mainly of iron and other radioactive elements such as uranium and plutonium released heat and then, by gravity, the heaviest materials sank in the center and the lighter floated to the crust.Such a process is known as planetary differentiation.And by this fact is that the nucleus of the earth is composed of iron, nickel, iridium, among others, which are as we said heavy materials.

It is important to mention that when our planet It was burning, the metals that today make up its core suffered an alloy that became a very dense and strong structure and, for the case , the planet Earth is the densest in our system.

The inner core has a radius of 1,220 km.It is believed to be solid and has a temperature between 4,000 and 5,000 ° C.It is possible that the inner core is the result of crystallization of what was a more liquid mass large and that this growth process continues.Its thermal energy influences the mantle , particularly in convection currents.It is currently considered that the inner core has a rotational movement and is possible to be reduced at the expense of the external.

Many scientists believe that e 4 billion years ago the Earth already had a magnetic field caused by a metal core.Its training set the limit between the consolidation process and the surface cooling.

The Earth Nucleus is vital for our species and for life in general; and if the Earth Nucleus did not exist, our planet would definitely have no chance of harboring life.The main reason is that thanks to this nucleus, what is known as terrestrial magnetic current is generated , something that is essential for our planet to be habitable.

It is important to highlight the importance of the function of the Earth Nucleus since without it; our magnetic field would not be strong enough to protect us from the fiery sun rays ; and it is that the magnetic field is responsible for slowing the solar wind, causing most of the particles to collide with our planet and disperse.