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
Apr 2026
Jan 2026
Latest Journal Issues
Nuclear Science and Engineering
May 2026
Nuclear Technology
March 2026
Fusion Science and Technology
Latest News
NRC introduces microreactor regulatory framework
The Nuclear Regulatory Commission has released a new licensing framework for microreactors and similar reactor designs that may provide a more suitable pathway for applicants with simpler technologies.
The proposed rule—known as Part 57—is the latest to come out of the NRC’s rules review and overhaul stemming from the ADVANCE Act and 2025 nuclear-related executive orders. It is also the latest framework developed for advanced reactor designs shifting away from light water reactor technology, such as the Part 53 rule finalized in March.
Technical Session|Architectures, Missions, and Use Cases
Wednesday, April 29, 2026|2:00–3:20PM EDT|Room 306
Session Chair:
Gina Dugala
Alternate Chair:
Monica Salunkhe (Univ. Alabama, Huntsville)
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
The Future of Deep Space Exploration Without Pu-238
2:00–2:20PM EDT
William James Adams (Jim Adams World, LLC), James L. Green (Space Science Endeavors), Ralph L. McNutt Jr. (Johns Hopkins Univ. APL), June F. Zakrajsek (Aerospace Corp.)
Paper
REXIS - Rendezvous With Legacy Nuclear Reactors on Earth Orbit
2:20–2:40PM EDT
Michal Marčišovský (Stellar Nuclear), Edita Bromová (Stellar Nuclear), Marek Strnad (Czech Technical Univ.), Martin Ševeček (Czech Technical Univ.), Adam Hláčik (Stellar Exploration)
Voyager 1 and 2, Cassini, New Horizons, Curiosity, and Perseverance – Overachieving Beyond all Expectations
2:40–3:00PM EDT
Thomas J. Sutliff (Aerospace Corp.), Ralph L. McNutt Jr. (Johns Hopkins Univ.)
Dragonfly Mission MMRTG Launch System Integration for the a Horizontal Processing Launch Vehicle System
3:00–3:20PM EDT
Steven R. Vernon (Johns Hopkins APL), Hoi Yee Tom (Johns Hopkins APL)
To join the conversation, you must be logged in and registered for the meeting.
