Today's lecture is really mostly a pep talk and a victory lap celebrating nuclear astrophysics, but at the end we do start to look at the most central data: solar system abundances. Lecture slides: {{:bdfields_talent1.pdf|The Cosmic History of Baryonic Matter}} Some relevant material appears in courses I have taught at Illinois, including: * [[http://courses.atlas.illinois.edu/fall2009/astr/astr596npa/ | Nuclear and Particle Astrophysics]] * [[http://courses.atlas.illinois.edu/spring2014/ASTR/ASTR507/ | Physical Cosmology]] ~~DISCUSSION|Cosmic History of Baryonic Matter~~