Noel Sydney Hush was born in Sydney in 1924. He finished secondary school in 1941 and began university the following year. Hush completed a BSc Hons (1945) and MSc (1948) from the University of Sydney. For the latter part of this time he worked as a research fellow in the Department of Chemistry (1945-49).Hush then accepted an assistant lectureship at the University of Manchester (1950-54). On the basis of his published work, he was awarded the University’s Doctor of Science (D.Sc.) degree in 1959. In 1955, Hush moved to the University of Bristol where he worked firstly as a lecturer and then reader (1955-71) in the Department of Chemistry.
Hush returned to Australia and the University of Sydney in 1971 to found a new department of Theoretical Chemistry, a position he held for nearly two decades (1971-89). Upon his formal retirement, Hush accepted an appointment as emeritus foundation professor of Theoretical Chemistry at the University of Sydney, while continuing his research. In 2002, he also became convenor of the University of Sydney Molecular Electronics Group.
Professor Hush was elected to the fellowship of the Australian Academy of Science in 1977 and served as a member (1978-81, 1984-89) and chairman (1981-82, 1989-92) of the Sectional Committee for Chemistry and as a member on the Science Policy Working Group (1987-97).