Science: Project Ozma

On a planet revolving around the star Epsilon Eridani there may be a radio antenna several times as big as a baseball stadium. From it toward other planets revolving around other stars may go messages proclaiming the existence of a high civilization in the Epsilon Eridani system. The Earth may be one of the planets toward which such messages are beamed.

Such is the stuff that dreams are made of—but in this case the dream is shared by highly intelligent and practical scientists. Among them is Dr. Frank Drake, 29, of the National Radio...