Sunday, February 28, 2010
Plutos Discovery by Clive Tombaugh
On February 18, 1930 Clive Tombaugh noticed a faint dot jumping backwards and forwards in his blink comparator plates, we know know that dot as Pluto. The Astronomical Society of the Pacific has the story of Pluto's discovery in Clyde Tombaugh's own words. Go have a read of this fascinating moment in astronomical history, as seen by the man who witnessed it.