B.A., University of Minnesota
M.S., University of Chicago & Yerkes Observatory
Ph.D., University of Chicago & Yerkes Observatory
Astronomy: Associate professor
Physics: Associate professor
Engineering: Associate professor
Archaeology and Culture of the Ancient Near East: Associate professor of astronomy and physics, geology
Environmental Science: Associate professor astronomy and physics
Born in Minneapolis, Minnesota on November 24, 1945. Married Carolyn Lee Spinks on September 26, 1969 and has 3 children.
Theodore Roosevelt High School, Minneapolis; graduated June 1962.
University of Minnesota; BA 1966; majors in astronomy and mathematics, minor in geology.
Churchill College, Cambridge University, UK; one year of graduate research in radio astronomy, 1966-67 academic year.
University of Chicago and Yerkes Observatory; MS 1970, PhD 1974 in astronomy and astrophysics.
Vertebrate Paleontology Lab Assistant, St. Paul Science Museum (now renamed Science Museum of Minnesota), 1959 - 1966.
Lab Teaching Assistant, Astronomy Department, University of Minnesota, 1963 - 1966.
Instructor of Astronomy and Geology, Dominican College, Racine, Wisconsin, 1971.
Instructor of Astronomy, Physics Department, University of Wisconsin -- Milwaukee, 1971 - 1973.
Instructor, then Assistant Professor, now Associate Professor of Astronomy and Physics, Lycoming College, 1973 - present.
The Nearby Stars
Impacts and Extinctions
Climate History of Earth over Geologic Time-scale