Josefina Castellví, Antarctic research pioneer, dies at 90

Josefina Castellví, a pioneer in Antarctic research and the first woman to lead a Spanish scientific base there, has died at age 90. Castellví, an oceanographer and marine biologist, was instrumental in establishing Spain's first Antarctic scientific base and was among the first Spanish women to set foot on the continent. She directed the Juan Carlos I Antarctic Base and was recognized with numerous awards for her contributions to science and sustainability.