Clyde W. Tombaugh, 1906 - 1997
Clyde W. Tombaugh is best known for his February 18, 1930,discovery of the elusive "Planet X," later to be named Pluto, at Lowell Observatory in Arizona. The majority of his career was spent in New Mexico, working first on the tracking telescopes at White Sands Proving Ground and later helping to establish the astronomy program at New Mexico State University in Las Cruces, considered one of the nation's best. After his retirement in 1973, Dr. Tombaugh remained very active as a lecturer. Many senior Library staff members remember interacting with him on a regular basis as he came and went from his office in the astronomy department, located just across the street from the Library. Born in Illinois in 1906, the world-famous astronomer passed away on January 17, 1997, at the age of ninety.