Now, this mass that is created also has electrical and gravitational properties which store energy. In this way, mass can be created from the vacuum of space and transformed once again back into the vacuum. Simple particles can be created in this way in a certain portion of the universe. When many start accumulating that portion of the universe becomes gravitationally dense and attracts all surrounding matter. Eventually, this dense mass has attracted everything in existence and explodes.
Energy is released in all forms.
Matter fuses with other matter forming different particles and atoms. The purpose of this article is not to explain how life developed as there are other theories for that. Every event that you can think of has a probability associated with its occurrence. Often events are deemed impossible because the probability of them happening is so small, but they do have a probability. There are a few billionaires.