Pluto Is Discovered (1930)

Pluto was discovered by the astronomer Clyde Tombaugh at the Lowell Observatory in Arizona while he was searching for “Planet X,” a hypothetical planet that was believed to exist beyond Neptune. Pluto was long regarded as a planet, but following the discovery of other, larger Kuiper belt objects, astronomers recognized the need to reclassify Pluto. In 2006, the International Astronomical Union ended official recognition of Pluto as a planet. What is Pluto’s current classification? Discuss

Source: The Free Dictionary

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