Clyde Tombaugh Quotes
Young man, I am afraid you are wasting your time. If there were any more planets they would have been found long before this.
Citations
Tombaugh, Clyde W., and Patrick Moore. Out of the Darkness: The Planet Pluto. Stackpole Books, 1980.
Related Quotes
Clyde William Tombaugh /ˈtɒmbaʊ/ was an American astronomer. He discovered Pluto in 1930, the first object to be discovered in what would later be identified as the Kuiper belt. At the time of discovery, Pluto was considered a planet, but was reclassified as a dwarf planet in 2006. Tombaugh also discovered many asteroids, and called for the serious scientific research of unidentified flying objects.