Pluto discovered | February 18, 1930 | HISTORY
Pluto, once believed to be the ninth planet, is discovered at the Lowell Observatory in Flagstaff, Arizona, by astronomer Clyde W. Tombaugh.
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History of Pluto
On February 18, 1930, Clyde Tombaugh discovered Pluto. Thus kicked off a hectic time for the entire observatory staff, as they worked
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Feb. 4, 1906: The birth of Clyde Tombaugh
At Lowell, Tombaugh would make his most famous discovery: the ninth planet (now classified as a dwarf planet), Pluto. But he also discovered hundreds of variable stars, asteroids, star...
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This Week in Illinois History: Clyde Tombaugh
On February 18, 1930, Clyde Tombaugh of Streator, Illinois, discovered our solar system''s most famous dwarf planet, Pluto. Pluto was the
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Clyde Tombaugh: The astronomer who discovered Pluto
From farm boy to cosmic pioneer: The life and legacy of Clyde Tombaugh. Clyde Tombaugh was an American astronomer best known for his groundbreaking discovery of Pluto in 1930.
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Clyde Tombaugh | Discoverer of Pluto, American
Clyde Tombaugh (born February 4, 1906, Streator, Illinois,
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Clyde Tombaugh: the astronomer who discovered Pluto
Dwarf planet Pluto was discovered by Clyde Tombaugh at Lowell Observatory in Flagstaff, Arizona, US on 18 February 1930. Though he would go
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February 18, 1930: Clyde Tombaugh discovers Pluto
Tombaugh never learned of this news, as he died in 1997, but after his Pluto revelation, he continued his career in astronomy. He went on to discover hundreds of stars and asteroids, along
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