Clyde William Tombaugh /ˈtɒmbaʊ/ (February 4, 1906 – January 17, 1997) was an American astronomer. He discovered the ninth planet Pluto in 1930, the first...

Planitia via glacial flow. The region is named after Clyde Tombaugh, the discoverer of Pluto. Tombaugh Regio is a large, light-colored region about 1,590 km...

23-year-old Clyde Tombaugh, who had just arrived at the observatory after Slipher had been impressed by a sample of his astronomical drawings. Tombaugh's task...

population was Frederick C. Leonard. Soon after Pluto's discovery by Clyde Tombaugh in 1930, Leonard pondered whether it was "not likely that in Pluto there...

International Astronomical Union named asteroid 6618 Jimsimons, which Clyde Tombaugh discovered in 1936, after Simons in honor of his contributions to mathematics...

Lowell Observatory that the dwarf planet Pluto was discovered in 1930 by Clyde Tombaugh. The observatory was founded by astronomer Percival Lowell of Boston's...

the United States. It was named after the discoverer of Pluto, Clyde Tombaugh. Tombaugh is a member of the Eos family that orbits the Sun in the outer...

1915, without realizing at the time that it was not a star. In 1930, Clyde Tombaugh, working at the Lowell Observatory, discovered Pluto near the location...

could have perturbed Uranus enough to account for the irregularities. Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis...

theme displayed in the toponymy of this area. The cliffs were named for Clyde Tombaugh (1906-1997), an American astronomer who studied at Lowell Observatory...