Cesare Mansueto Giulio Lattes (born 11.07.1924) is a Brazilian physicist and a member of the Brazilian Academy of Sciences. He was born in Curitiba. He graduated from the university in São Paulo (1943), where he worked. In 1946-47 he was on a research attachment at the University of Bristol, and in 1948 — at the Radiation Laboratory of the University of California at Berkeley. From 1949 he has been professor at the Brazilian Centre for Physical Research (in 1955 —56 —at the E. Fermi Institute for Nuclear Studies in Chicago) and at the university in Rio de Janeiro. His research is in the field of nuclear physics, high-energy physics and the physics of elementary particles, nuclear fusion, nuclear geology, the physics of cosmic rays and cosmology. In 1947, together with C. Powell and G. Occhialini, he discovered charged pi-mesons, and in 1948, with E. Gardner, he was the first to produce artificial mesons.