A U.S. physicist who was involved in the Manhattan Project visited Hiroshima for the first time Wednesday, 63 years after the atomic bombing.

Joan Hinton, 86, now lives in a farming village near Beijing and engages in dairy farming — a life far removed from what she had been doing at the Los Alamos facility in New Mexico where the first atomic bomb was produced.

Hinton said she had never thought the bombs she helped develop would actually be used against humans, and she found out about the bombings in the newspaper.