Obituary: Frank Asaro

Scientist Frank Asaro (b.1927) died on June 10. Asaro discovered the iridium anomaly in the C-P boundary which led to the Asteroid-Impact Theory created by Asaro, Luis Alvarez, Walter Alvarez, and Helen Michel. Asaro’s research also led to important understandings of trade in ancient civilizations. Asaro’s daughter is SF author Catherine Asaro.