CP VIOLATION

C for charge conjugation, which transforms a particle into its antiparticle, and P for parity, which creates the mirror image of a physical system. If we look out in space as far as we can see, all evidence says that the universe is made almost exclusively of matter, with little or no antimatter. Since matter and antimatter are basically just opposites of each other, why would there not be equal amounts of each? We now know that fundamental properties of matter (and antimatter) determine how the universe has evolved, and that if there is indeed more matter, then at least some elementary particle interactions must display CP violation.