Steven Weinberg (born 3.05.1933) - American theoretical physicist, a member of the National Academy of Sciences (1972). Born in New York. He graduated from Cornell University (1954). In 1957–59 he worked at Columbia University, in 1959–66 at the University of California (Berkeley) and in 1966–69 at Harvard. In 1969–73 professor at the Massachusetts Institute of Technology and from 1973 at Harvard University. His work is in elementary particle physics, the theory of gravitation and cosmology. In 1962, independently of others, he gave a general mathematical proof of Goldstone's theorem. In 1967, independently of A. Salam, he proposed a unified model of the weak and electromagnetic interactions (the Weinberg—Salam theory) (Nobel Prize, 1979). Together with J. Schwinger he laid the foundations of a new line of research in elementary particle physics, chiral dynamics. Independently of others he put forward the gluon hypothesis (1973). The R. Oppenheimer (1973) and D. Heineman (1977) prizes, the E. Cresson Medal (1979).