Matter Almost Lost
In the early universe, particles and antiparticles were made and destroyed in huge numbers. If they had matched perfectly, they would have wiped each other out and left behind almost nothing but photons.Big Bang Mystery: Why Matter Exists
But Matter Won by a Sliver
Some unknown process seems to have produced a tiny excess of quarks and leptons over their opposites. That imbalance was incredibly small—about one part in 30 million—but it was enough to leave matter behind.Big Bang Mystery: Why Matter Exists
