Maurice Goldhaber was an Austrian-born American physicist, who in 1957 established that neutrinos have negative helicity. He was born on April 18, 1911 in Lemberg, Austria. In 1934, working at the Cavendish Laboratory in Cambridge, England he and James Chadwick, through what they called the nuclear photo-electric effect, established that the neutron has a great enough mass over the proton to decay. In 1950 Goldhaber went to Brookhaven National Laboratory, Upton, N.Y., where, seven years later, with the American physicist L. Grodzins, he discovered that the neutrino has a left-handed spin. He served as director of Brookhaven from 1961 to 1973. Although Goldhaber retired in 1985, he continued his research at the laboratory into the early 21st century. The recipient of numerous honours, Goldhaber was awarded the National Medal of Science (1983) and the Enrico Fermi Award (1999). He died on May 11, 2011 in East Setauket, Brookhaven, New York, United States.