Former ICTP Senior Associate (1985-1994) Mariana Weissmann, senior researcher at Comision Nacional de Energía Atomica in Buenos Aires, Argentina, who has visited ICTP on numerous occasions over the past two decades, has been awarded the L'Oreal-UNESCO Prize for Women in Science. The prize, given each year to five women scientists (one from each of the five continents), carries a cash award of US$100,000. This year's competition focussed on material sciences. Launched in 1999, L'Oreal-UNESCO Prize for Women in Science has become one of the world's most prestigious prizes for women scientists. For additional information, see www.forwomeninscience.com.