Big Bang nucleosynthesis: the process by which the light elements (hydrogen, helium, and a small amount of lithium) were synthesized in the early universe, thought to have occurred around 3 minutes after the Big Bang.
Big Bang nucleosynthesis: the process by which the light elements (hydrogen, helium, and a small amount of lithium) were synthesized in the early universe, thought to have occurred around 3 minutes after the Big Bang.