We understand according to the big bang theory, that all the matter in the universe, is originally from a plasma, who began to cool, then according to the law of changes of State of matter, plasma with cooling can Des ionize into a gas, and then this gas by the cooling of the universe, it can pass to the solid state, a process known as reverse sublimation, due to the characteristics of the outer space, in it there are no the substance in the liquid state. The natural evolution of plasma in cooling is a solid ionic. Now the main solid matter composed of positive and negative ions are known as ionic crystals.