Robert Oppenheimer

During World War II, he became the scientific director of the Manhattan Project.

An excerpt from the article 32 facts about Robert Oppenheimer

The secret research project involved the development of the first atomic bomb. Its goal was to harness nuclear energy and use it to create a new kind of weapon. The project was headed by General Leslie Groves, who appointed Robert Oppenheimer to work with him in leading a group of the world's most prominent scientists.

The Manhattan Project was headquartered at an abandoned site called Los Alamos in New Mexico.