Pluto - Rebel of the Solar System

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The Most Heartbreaking Demotion in Astronomy You know the story. In 1930, Clyde Tombaugh discovered Pluto—a tiny world at the solar system's edge, far enough from the sun that it takes 247 Earth years just to complete a single orbit. For 76 years, it held a place of honor: the ninth planet. Children memorized its name. Astronomers pointed it out in their lectures. Pluto belonged. Then, in 2006, the International Astronomical Union reclassified it to "dwarf planet." The world felt betrayed. We felt betrayed. But here's what the astronomers got right: Pluto doesn't fit the rules. And that's precisely what makes it extraordinary. The Rebel That Defied Classification This poster celebrates everything that makes Pluto unique—everything that ultimately led to its reclassification, and everything