01
The observable universe contains far more matter than antimatter, even though known microscopic laws often treat matter and antimatter nearly symmetrically.
supportedLearn this concept
Turn the idea into understanding.
Knowledge map
See where this idea fits.
Before this
Prerequisites
After this
Builds toward
Evidence first
Verified knowledge behind the lesson.
02
If reactions in the early universe violated baryon number and CP symmetry while occurring out of equilibrium, slightly more baryons than antibaryons could survive.