Friedman, Chubb, Byram, and Kreplin were pioneers in X-ray space science, X-ray astronomy, and both founding and early and original members of the electron optics branch at the Naval Research Laboratory in Washington, D.C. The interview focuses on their work at NRL. They discuss their impressions upon coming to NRL, their training and how they were hired; what they were hired to do; and their work in the post-World War II era at the labatory.
