Since its discovery in 1930, Pluto has held a warm place in the public imagination. So, when the American Museum of Natural History's Hayden Planetarium stopped calling Pluto a planet, director Neil deGrasse Tyson found himself at the center of a firestorm led by angry, Pluto-loving elementary school students. NOVA joins Tyson on a quest to find out why this cold and distant rock has captured so many hearts. From the scientists trying to classify Pluto to die-hard "Pluto-philes," NOVA introduces viewers to a fascinating cast of characters with just one thing in common: strong opinions about Pluto.
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