When neutrons and protons intraconvert in forming elements, neutrinos are produced. When matter is made extremely hot and dense, neutrinos are produced. And, even long after these conditions occur, through radioactive relics, neutrinos are produced. Neutrinos are thus a key to classic questions of nuclear astrophysics. Great progress has been made --- solving the solar neutrino problem and confirming that Type II supernovae are due to core collapse --- but much remains unknown. Following an overview of the big questions and progress to date, I show how developments in theory and experiment offer hope for dramatic, near-term progress.

Argonne Physics Division Colloquium Schedule