In 'The Pluto Files,' Neil deGrasse Tyson chronicles the captivating journey of Pluto, from its discovery as the ninth planet to its controversial reclassification as a dwarf planet. This insightful book delves into the scientific debate that led to the demotion, exploring the criteria for planetary status and the passionate reactions from both the scientific community and the general public. Tyson, with his characteristic wit and clarity, explains the astronomical principles at play and the profound cultural impact of Pluto's changing identity. It's a fascinating look at how science evolves, challenging our perceptions and our emotional attachments to celestial bodies.