In 1930 astronomer Clyde Tombaugh made the discovery of a lifetime: the planet Pluto. His work remains relevant today as astronomers continue their search for p
An adventure in scientific discovery Pluto, the farthermost planet in the solar system, some 3,673 million mites from the Sun, was discovered by Clyde Tombaugh
Pluto looms large in Flagstaff, where residents and businesses alike take pride in their community's most enduring claim to fame: Clyde Tombaugh's 1930 discover