What will Pluto be about according to the preface?

In the preface of "Pluto," the narrative sets the stage for exploring the complexities and nuances of this dwarf planet. It emphasizes Pluto's role in challenging our understanding of the solar system and invites readers to reconsider what defines a planet. The preface suggests that the story will delve into both scientific discoveries and the cultural impact of Pluto's reclassification, highlighting its significance beyond just astronomy.