Interview with Frank B. Estabrook

An interview on February 28, 2007, with Frank B. Estabrook, Distinguished Visiting Scientist at the Jet Propulsion Laboratory. Dr. Estabrook received his MS (1947) and his PhD (1950) in spectroscopy at Caltech. He joined JPL in 1960, becoming senior resarch scientist there from 1979 to 2006 and Distinguished Visiting Scientist in 2006. In this interview, he discusses his youthful fascination with general relativity and his later research, with H. D. Wahlquist, J. W. Armstrong, and B. Bertotti, on the development of proposals to detect gravity waves by means of the Doppler tracking of spacecraft. He discusses the involvement of Caltech theoretical physics professor K. S. Thorne in these efforts, and the inclusion of gravity-wave experiments in the Galileo, Mars Observer, Ulysses, and Cassini missions