In this episode, Julie Stopar helps us understand the makeup of the Moon and how it will drive exploration goals and needs. “Moon 101” is a series that features interviews with Apollo-era rocket scientists and engineers telling their stories about how they did it and lessons learned. In this curriculum, some of the world’s leading lunar experts discuss various aspects of the Moon. They discuss the Apollo missions, their importance, and what we’ve learned, as well as other exploratory Moon missions. “Moon 101” provides a snapshot of some of the most important and interesting discoveries about our Moon.