Clyde Tombaugh

Clyde Tombaugh: Discoverer of the planet Pluto

In early 1930, after spending countless nights in a cold dome carefully photographing miniscule portions of the sky, Clyde Tombaugh discovered Pluto. Today, as astronomers detect large new worlds at the edge of our solar system and a spacecraft embarks to explore Pluto itself, we're finally beginning ot sense the true significance of Tombaugh's find.

The author David H. Levy, one of the foremost amateur astronomers in the United States, has discovered 21 comets.