Oppenheimer in FocusJ. Robert Oppenheimer, often referred to as the father of the atomic bomb, left us with a grim legacy. The nuclear advancements he helped create became a pivotal factor in shaping the 20th century, dominating global power dynamics and modern warfare. A brilliant yet contentious physicist, Oppenheimer was eventually viewed as a threat to the U. S. government due to his perceived communist sympathies, leading to his forced resignation as the nations