Cheryl Rofer worked at the Los Alamos National Laboratory from 1965 to 2001. She developed an essential spectrum for laser isotope separation, managed environmental cleanups at the laboratory and a program to develop a disposal method for hazardous waste, and worked with Estonia and Kazakhstan to clean up environmental problems left by the Soviet Union. Since retirement, she has been active in local groups having to do with world affairs and Manhattan Project history. She explains scientific aspects of the news on social media. In addition to her technical articles, a book, and multiple interviews, she has reviewed the television series “Manhattan” and the Santa Fe performance of “Dr. Atomic” for Physics Today.