Every time a particle of matter is made, a particle of antimatter is also made. So it seems like all matter ever created should have annihilated with antimatter, leaving behind an empty universe. But then... why is our universe filled with matter?
Every time a particle of matter is made, a particle of antimatter is also made. So it seems like all matter ever created should have annihilated with antimatter, leaving behind an empty universe. But then... why is our universe filled with matter?