English: Chemist Dr. Darleane Hoffman was the first woman to lead a scientific division at Los Alamos National Laboratory, landing the role in 1979. She joined the lab in 1953, and stayed on staff for 31 years. She trained generations of female scientists. Dr. Hoffman’s work impacted scientific methods used today in the national security community. She showed that the isotope fermium-257 could split spontaneously, and uncovered plutonium-244 in nature. In 1993, she helped confirm the existence of element 106, seaborgium. In 2014, she was honored with the Los Alamos Medal, the highest award given by the Laboratory.