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Pluto Ninety three years ago an astrologer noticed slight variations in the orbit of the planet Uranus.Then the search began for a ninth planet.Twenty five years later a startling discovery was made. The year was nineteen thirty when Clyde William Tombaugh had discovered a ninth planet beyond Neptune.The telescopic search initiated twenty five years years before by the man who first noticed these variations in Uranus's orbit Percival Lowell had been a …

…found something, but not what he was looking for.The mass of Pluto is far to small to be the cause of the variations in the orbit of Uranus.And so the search continues for a tenth planet although many people have given up on that theory. Percival Lowell may not have found a planet of such majesty to cause those variations, but he did find what would later become the former planet of Pluto.