. . . "Geoffrey W. Marcy (born September 29, 1954) is an American astronomer. He is currently a Professor of Astronomy at the University of California, Berkeley and an Adjunct Professor of Physics and Astronomy at the San Francisco State University . He is one of the pioneers and leaders in the discovery and characterization of planets around other stars."@en . . "1954-09-29Z"^^ . . . "Geoffrey Marcy"@en . . . . . . . .