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
Feb 2026
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
March 2026
Nuclear Technology
February 2026
Fusion Science and Technology
January 2026
Latest News
ANS 2026 election is open
The 2026 American Nuclear Society election is now open. Members can vote for the Society’s next vice president/president-elect as well as six board members (five U.S. directors and one non-U.S. director). Completed ballots must be submitted by 12:00 p.m. (CDT) on Wednesday, April 1, 2026.
All ANS members have been emailed a unique access key from third-party election vendor ElectionBuddy. Each member can use their access key to vote once, and each vote will remain anonymous. Visit secure.electionbuddy.com/ballot to vote.
A. P. Herbert, B. Fisher, M. Granger, M. Blood, N. DeSotel
Nuclear Technology | Volume 211 | Number 2 | October 2025 | Pages S9-S16
Research Articles | doi.org/10.1080/00295450.2024.2431777
Articles are hosted by Taylor and Francis Online.
Space nuclear systems (SNSs) present a robust source of power and/or propulsion technology that will fundamentally enhance and expand deep-space mission capability. In this era of space nuclear renaissance, there are several active U.S. SNS programs, one of which is seeking the first space reactor launch approval of the modern era. SNSs present complex systems with unique and novel challenges for established launch safety procedures, particularly for prelaunch and initial launch operations as prescribed by the U.S. government’s federal ranges. This paper examines high-level range safety considerations for a model expander cycle nuclear thermal propulsion SNS during ground processing and the pad and launch operational phases.