Dr. Thomas M. Brown currently serves as the center chief engineer and manager of the Chief Engineering Office within the Engineering Directorate at NASA’s Marshall Space Flight Center. In this role, Brown is responsible for assuring the technical excellence and success of all Marshall-assigned spacecraft, propulsion, science payload, life support, and mission systems. He provides expert technical leadership in planning, directing, and executing research, technology, ground and flight systems design and development, production, integration, and sustaining engineering for the Space Launch System Program, Human Landing System Program, the Human Exploration Development and Operations Office, and the Science and Technology Office. Science and Technology efforts include Space Nuclear Propulsion activities led by NASA MSFC. Dr. Brown holds a U.S. patent and has published over 30 refereed journal publications, book sections, and conference proceedings related to fundamental combustion, advanced measurement techniques, propulsion technology, and propulsion systems analysis and integration.