Childhood in Germany and family background — competitive spirit; war years — internment and radar work with Bondi and Hoyle (1942-1945) at Cambridge — development of theory of hearing and steady state theory; at Greenwich (1952-1956) — research on lunar surface and terrestrial dynamics; positions at Harvard and Cornell — involvement with Arecibo; involvement with governmental agencies including NSF and NASA — changes in government funding. A major part of the interview covers the development and reception of the steady date theory.