Clyde Tombaugh
Astronomer who discovered Pluto, planetary science pioneer
William Clyde Tombaugh (1906–1997) was an American astronomer who made one of the most significant astronomical discoveries of the twentieth century when he identified Pluto on February 18, 1930. Working at the Lowell Observatory in Arizona, Tombaugh used photographic plate analysis to detect the faint planetary body beyond Neptune, expanding humanity's known solar system. Despite being a self-taught astronomer who never earned a formal degree in astronomy, his discovery earned him international recognition and set the trajectory for a distinguished career in astronomical research. Tombaugh went on to make numerous other contributions to astronomy, including the discovery of hundreds of asteroids and the study of occultations and stellar proper motions. Though Pluto was controversially reclassified as a 'dwarf planet' in 2006—years after his death—Tombaugh's achievement remains one of the last major planetary discoveries and a cornerstone of modern astronomy. His legacy is celebrated not only for the discovery itself but for demonstrating that groundbreaking scientific contributions could come from dedicated individuals without traditional academic credentials, inspiring generations of amateur and professional astronomers.
Science & Technology
American
1906
1997
Thinking about the name
Clyde
Scottish origin
“Derived from the River Clyde in southwest Scotland, from the Cumbric word clud meaning 'hard' or relating to rough, turbulent waters. Clyde became iconic as a masculine American name through the early 20th century, often associated with rugged individualism and frontier spirit. It's a name that feels both grounded and adventurous.”