ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Nuclear and Emerging Technologies for Space (NETS-2022) Plenary SPeaker
Chief Executive Officer and co-founder
Dark Fission
Dr. Fred Kennedy is Dark Fission’s Chief Executive Officer and co-founder. He served as the President of the space tug builder Momentus from September 2020 until January 2022. Prior to this, Fred worked at Astra as the company’s Vice President for Future Missions, focusing on small satellite production capabilities. He left federal service in 2019, after standing up the U. S. Department of Defense’s (DoD’s) Space Development Agency (SDA), established by Acting Secretary of Defense Patrick M. Shanahan.
From 2017 until he became the SDA Director, Dr. Kennedy was the Director of the Tactical Technology Office (TTO) of the Defense Advanced Research Projects Agency (DARPA). Before this, he served as the senior policy advisor for national security space and aviation in the National Security and International Affairs Division of the White House Office of Science and Technology Policy (OSTP). In this role, Dr. Kennedy advised the President of the United States on matters related to space and aviation policy. He is active on multiple aerospace company advisory boards. Dr. Kennedy contributes to Forbes Online, primarily on space and defense issues.
Dr. Kennedy served over 23 years in the United States Air Force, where he retired as a colonel. During his tenure, he served as a Senior Materiel Leader in both the Air Force’s Space and Missile Systems Center’s Remote Sensing Directorate and the Air Force Lifecycle Management Center’s Battle Management Directorate. Prior to that, he was the lead for Space Requirements with the Joint Staff/J-8 in the Capabilities and Acquisition Division at the Pentagon and a chief for Spacecraft Payload Development and Test and Satellite Systems and Acquisition at the National Reconnaissance Office. From 2005 to 2008, while still in the Air Force, Dr. Kennedy served as a program manager at DARPA, where he created and managed efforts around spacecraft and satellite servicing, advanced space power and propulsion systems, and innovative space technologies.
Dr. Kennedy holds a Ph.D. in electronics and physical sciences from the University of Surrey, Guildford, Surrey, United Kingdom; a Master of Arts in organizational management from George Washington University; a Master of Arts in Strategic Studies from the U.S. Army War College; and Master and Bachelor of Science degrees in Aeronautics and Astronautics, from the Massachusetts Institute of Technology.
Last modified April 18, 2022, 2:52pm EDT
