Background
Helfand, David John was born on December 7, 1950 in New Bedford, Massachusetts, United States.
Helfand, David John was born on December 7, 1950 in New Bedford, Massachusetts, United States.
Bachelor, Amherst College, 1973; Master of Science & Doctor of Philosophy, University Massachusetts, 1977.
Research assistant, Five Colonel Radio Astronomical Observatory, 1973-1977; associate professor physics, 1982-1987; professor physics, Columbia University, since 1987; co-director, Astrophysical Laboratory Columbia University, since 1986. Lecturer American Astronomical Society, since 1980. Vice president New York Astronomical Corporation, 1981-1986, president, 1986-1990.
Member American Astronomical Society, New York Academy Sciences, Sigma Xi.
Married; 1982; 1 child.