This episode takes us on a journey through the history of early astronomy, from ancient astronomers observing the night sky to celestial sphere models. Using chapter 1 of "Coming of Age in the Milky Way" by Timothy Ferris, I discuss the evolution of scientific models, including the details and fabrications of Ptolemy. I consider the changing nature of theories and the endless possibilities for future discoveries.    00:00 Introduction 00:19 Discovering an Old Gem 01:54 Early Astronomy: Celestial Spheres to Ptolemy's Models 05:17 Ptolemy's Legacy: Fabrication and Insight 08:40 Evolution of Scientific Models and Theories