Pluto stopped being a planet 20 years ago. Why people still care

Two decades after Pluto ceased to be classified as a planet, the subject remains a point of significant interest. As astronomers discover various unusual worlds beyond our solar system, many experts argue that the fundamental question which divided the scientific community in 2006 is still difficult to resolve. The core of the ongoing debate centers on establishing a precise and definitive answer to the question of what exactly constitutes a planet in the modern astronomical era.