This special colloquium will celebrate the distinguished research career of our friend and colleague, Art Champagne. Most of you remember Art as our former department chair and TUNL director, and as a distinguished teacher. Outside the nuclear physics group, few of you will have an impression of the world-class quality of his achievements in nuclear astrophysics research. I will discuss Art’s years at Yale, Princeton, and UNC. My story will start with primitive meteorites, and continue with galactic radioactivity, stellar evolution, and cosmology. You are strongly encouraged to attend the colloquium to celebrate an exceptional research career.