Tombaugh was the son of Muron and Della Tombaugh. The family moved to a farm near Burdett, Kansas, in 1922 where Clyde attended high school. At the time of his death, he was the only remaining staff member who had been present at Lowell Observatory, Flagstaff, Arizona, when Pluto was ...
Pluto endured as a planet for more than 70 years. As astronomical instruments became increasingly precise, however, other similar-sized objects were found beyond the orbit of Neptune. In 2006, almost a decade after Tombaugh's death, the International Astronomical Union reclassified Pluto as adwarf...
Farewell to Clyde Tombaugh.Reports on the death of Clyde Tombaugh, discoverer of Pluto, on July 17, 1997. Contributions to space studies; Space discoveries credited to Tombaugh.DaschPatKrossJohnAd Astra