| They more or less figured out the whole story, including predictions for primordial nucleosynthesis and the cosmic microwave background. |
| The one problem with the story of stellar nucleosynthesis as developed in the 1950s was that it could not explain where helium came from. |
| Physicists call this process nucleosynthesis, and it had to occur before the structures we observed today, such as atoms and molecules, could exist. |
| The starting point in tracing planetary evolution is nucleosynthesis, the formation of the chemical elements on a cosmic scale. |
| Fusion reactions are the primary energy source of stars and the mechanism for the nucleosynthesis of the light elements. |
| Evidence from both the cosmic microwave background and primordial nucleosynthesis gives tight bounds on how much ordinary matter there is. |
