In 1930, who discovered the planet Pluto, now re-designated an asteroid?
Tombaugh Tombaugh, C. W. Tombaugh, Clyde W. CLYDE TOMBAUGH Clyde William Tombaugh Clyde Tombaugh Clyde W. Tombaugh C. W. Tombaugh Tombaugh, Clyde
clyde tombaugh clyde william tombaugh tombaugh clyde w tombaugh clyde tombaugh c w c w tombaugh tombaugh clyde w tombaugh
clyde tombaugh
WikipediaEntity
CLYDE TOMBAUGH