Big Bang nucleosynthesis is a process of forming matter nucleus during Big Bang . It was thought that before Big Bang there was a hot and dense state in universe. Basically, it was a state of energy with no existence of matter. After three minute of Big Bang first nucleus of universe is formed. During Big Bang sudden and rapid cooling of hot and dense state of energy formed first nucleus of universe. The entire process of forming nucleus is called Big Bang Nucleosynthesis.
Color confinement is a phenomenon that implies that color charged particles can not be isolated and can not be directly observed. Just for example, quarks can not be directly observed and directly isolated, rather it can found as hardon. The main two types of hardon is baryon and meson. Color confinement is also called quantum chromodynamics.
Cosmic Microwave Cosmic Microwave Background is a electromagnetic radiation during the stage of Big Bang, the initial expansion of universe. Cosmic Microwave Background is also known as the relic radiation or cosmic microwave background radiation.
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