As we all know, the universe originated 13.8 billion years ago from a single point in nothingness through a massive burst of energy known today as the big bang. The extremely dense and hot point began to expand and cool down, causing some of the energy to concentrate into particles. According to modern physical theories, this should have created an equal number of matter particles, each with a sort of twin with opposite electric charge: antimatter.In the second after their formation, matter and antimatter particles should have annihilated each other, leaving behind an empty, radiation-filled space with no matter, no gases, no galaxies, and no planets. The problem is that we live in a universe full of matter and very little antimatter. So the question is: what happened to the other half of the universe, the antimatter particles? The disappearance of antimatter is one of the biggest mysteries and most open questions in physics. In this article we will show in detail that it is highly unlikely that baryogenesis is a valid explanation for the asymmetry between matter and antimatter. After that we will attempt to propose a solution that preserved symmetry in the universe. The result: an anti-universe in its own three spatial dimensions.