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Is Pluto Still a Planet?

Once considered the ninth planet in our solar system, Pluto's planetary status was officially revoked in 2006 by the International Astronomical Union (IAU). This controversial decision introduced a new set of criteria for defining a planet, resulting in Pluto being reclassified as a "dwarf planet." This article explores the scientific reasons behind the IAU's decision, focusing on the new criteria—specifically, Pluto's failure to "clear its orbital neighborhood." We will delve into the ongoing debate among scientists and the public, examining arguments for and against Pluto's restoration as a full-fledged planet, and the future of classifying objects in the Kuiper Belt.