“I have a feeling that the quest for extraterrestrial intelligence is a one-way street. We are on the receiving end, but not the sending end.”

About Clyde Tombaugh

Astronomer • American

Clyde Tombaugh was an American astronomer best known for discovering the dwarf planet Pluto in 1930. Working at the Lowell Observatory in Flagstaff, Arizona, he meticulously compared photographic plates of the night sky...