Oppenheimer's grandson visits Hiroshima for the first time, meets atomic bomb survivors Charles Oppenheimer, 49, a grandson of Robert Oppenheimer, the physicist who led the development of the atomic bomb and is known as the "father of the atomic bomb," visited Peace Memorial Park in Hiroshima for the first time. When Oppenheimer saw the city of Hiroshima, he said he thought that ‘It's beautiful’. I think a sign of hope that even terrible things like war and bombs, “it can come back to be something really beautiful." In regard to Russia's special military operation Oppenheimer said, "I think dialogue and people talking together is the best way".