Cornell University is an institution that has traditionally been at the leading edge of both SETI and planetary science. Many SETI pioneers have studied or taught there. Charles Seeger enrolled in the school of engineering in 1939 and founded the Cornell Radio Astronomy Project in 1946. In the same year, Philip Morrison joined the physics faculty, to be followed in 1947 by Guiseppe Cocconi. Also in 1947, Freeman Dyson arrived at Cornell, becoming a professor in 1951. Frank Drake obtained his bachelor's degree there, before returning as professor of astronomy in 1964 and becoming head of the National Astronomy and Ionosphere Center in 1971. Among other prominent figures who graduated from or taught at Cornell were Carl Sagan, Jill Tarter, Christopher Chyba, Thomas Gold, and, perhaps most influentially in the early stages, Otto Struve.