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.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Mar 2026
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
March 2026
Nuclear Technology
February 2026
Fusion Science and Technology
April 2026
Latest News
NRC approves TerraPower construction permit
Today, the Nuclear Regulatory Commission announced that it has approved TerraPower’s construction permit application for Kemmerer Unit 1, the company’s first deployment of Natrium, its flagship sodium fast reactor.
This approval is a significant milestone on three fronts. For TerraPower, it represents another step forward in demonstrating its technology. For the Department of Energy, it reflects progress (despite delays) for the Advanced Reactor Demonstration Program (ARDP). For the NRC, it is the first approval granted to a commercial reactor in nearly a decade—and the first approval of a commercial non–light water reactor in more than 40 years.
Technical Session|Panel|Sponsored by DESD|Cosponsored by OPD
Wednesday, June 16, 2021|12:00–1:45PM EDT
Session Chairs:
Gail H. Marcus (Nuclear Power Technology and Policy)
Steven M. Mirsky (NuScale)
Session Organizer:
Staff Producer:
Susan Gallier (ANS)
Built in 1959, NS Savannah (NSS) was the world's first nuclear powered merchant ship and served as a signature element of President Eisenhower's Atoms for Peace program. While in service, NSS demonstrated the peaceful use of atomic power as well as the feasibility of nuclear-powered merchant vessels. The vessel was retired from active service in 1970 and registered as a National Historic Landmark in 1991. NSS is currently part of MARAD's National Defense Reserve Fleet (NDRF) in retention status. This session will examine the history of other civilian nuclear-powered vessels including the Sturgis, the Otto Hahn and the Russian non-naval vessels.
Brenda Barber
US Army Corps of Engineers
Tom Carroll
NS Savannah Assoc.
Hajo Neumann
TechnikMuseum
Erhard Koehler
MARAD
To access the session recording, you must be logged in and registered for the meeting.
Register NowLog In
To access session resources, you must be logged in and registered for the meeting.
Presentation Video (Visible to Attendees) — Uploaded on behalf of Erhard Koehler
To join the conversation, you must be logged in and registered for the meeting.