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
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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
May 2025
Nuclear Technology
Fusion Science and Technology
Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Exelon Generation is America’s leading provider of zero-carbon nuclear energy. We generate power that’s reliable, every minute of the day. Exelon has a balanced portfolio of natural gas, hydro, wind, and solar. Customers count on us daily for reliable, efficient, often innovative energy production. Exelon has one of the nation’s largest, cleanest, lowest-cost power generation fleets.
Exelon Generation has two primary business units: Exelon Nuclear and Exelon Power. Exelon Nuclear operates America’s largest fleet of nuclear power plants. We’ve had a very strong record of performance for 19 consecutive years, with a 2019 capacity factor of 95.7 percent. The Exelon nuclear fleet is a powerhouse, producing approximately 158 million megawatt-hours of electricity every year.
Exelon Power is responsible for managing, operating and maintaining the company’s fleet of natural gas, hydroelectric, wind, solar, landfill gas and oil assets. Exelon Power provides nearly 12,000 megawatts of safe, efficient, environmentally responsible base load, intermediate and peak power generation.
