The discovery and subsequent study of Pluto has captivated the public for nearly a century. Even the question of whether Pluto should be categorized as a planet or a dwarf planet has stirred passionate debate, but the implications of discoveries related to Pluto go far beyond the identification of an icy world at the outer edge of the solar system. My guests today are Kevin Schindler and Will Grundy, both of the Lowell Observatory in Flagstaff, Arizona, where Pluto was discovered. Kevin is a historian and Will is a planetary scientist, and the release of this episode of the Science History Podcast coincides with the publication of their new book entitled, Pluto and Lowell Observatory: A History of Discovery at Flagstaff, published by the History Press.