Explore the fascinating journey of low and intermediate-mass stars in this 27-minute astronomy lecture. Delve into core helium fusion, the evolution of asymptotic giant branch (AGB) stars, and the formation of planetary nebulae. Examine the structure of aging stars, thermal pulses, and the intricacies of convection in stellar interiors. Learn about the final stages of stellar evolution, including the formation of white dwarfs and their unique mass-radius relationship. Gain a comprehensive understanding of stellar fates, from hydrogen fusion to the ultimate cooling of white dwarfs, in this informative presentation by Spahn's Science Lectures.