In 2006, the International Astronomical Union (IAU) redefined the criteria for classifying planets, leading to Pluto's reclassification as a "dwarf planet." This decision, made during the IAU's 26th General Assembly, hinged on the requirement that a planet must clear its orbit, which Pluto does not meet. This reclassification sparked renewed interest in astronomy, spurred public debate, and encouraged engagement with scientific communities, emphasizing the dynamic nature of astronomical classifications.