Icy object beyond Pluto reignites debate over what qualifies as a planet
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·2 viewsA newly observed icy body located beyond Pluto has revived discussion among astronomers about the criteria used to define a planet. The debate centers on whether such distant, ice-rich objects should be classed alongside the traditional planets or treated as a separate category. Pluto's own reclassification as a dwarf planet in 2006 remains the reference point for this argument. Researchers continue to weigh factors such as size, shape, and whether a body has cleared its orbital neighborhood. The discussion is expected to continue as more objects in the outer solar system are discovered.
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