Noted Physicist Robert F. Christy Dies

Robert F. Christy, one of the last people alive to have worked on the Manhattan Project—which created the atomic bomb during World War II—and whose later research in astrophysics contributed to our understanding of the size of the universe, passed away on October 3 at his home in Pasadena. The former provost and acting president of the California Institute of Technology (Caltech), where he was a longtime professor, was 96 years old.

Christy was credited with designing the explosive core of the first atomic bomb.