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Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
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Nuclear Science and Engineering
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May 2026
Latest News
Antares achieves zero-power criticality at INL
Leveraging more than $140 million in private capital fundraising, over 322,000 square feet of operational manufacturing space, and multifaceted partnerships with the Departments of Energy and Defense, reactor start-up Antares has become the first company involved in the Reactor Pilot Program to achieve zero-power fueled criticality—a full month ahead of the July 4 deadline set by President Trump’s Executive Order 14301.
This milestone, announced yesterday, was achieved with the company’s Mark-0: a sodium heat-pipe-cooled, TRISO-fueled microreactor. The Mark-0 is a forerunner to the company’s flagship design, which it calls the R1. For Antares, this development represents a key validation of its reactor physics, control systems, and supply chain.
Technical Session|Fission Surface Power/Nuclear Electric Propulsion
Tuesday, May 7, 2024|3:15–4:55PM MDT|Sweeney B
Session Chair:
N. Dianne B. Ezell
Session Organizer:
Alternate Chair:
Scott Wilson
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Estimation of the Maximum Number of Fissions for a Space Nuclear Reactor
3:15–3:40PM MDT
Patrick McClure (Space Nuclear Power Corp.), David Poston (Space Nuclear Power Corp.)
Paper
A Model Based Systems Engineering Approach to Space Nuclear System Safety
3:40–4:05PM MDT
B. Fisher (Lockheed Martin Space), M. Granger (Lockheed Martin Space), A. Herbert (Lockheed Martin Space), N. Roberts (Lockheed Martin Space)
Impact on Mars Crew Vehicle with Nuclear Propulsion and Use of Artificial Gravity
4:05–4:30PM MDT
C. Russell Joyner II (Aerojet Rocketdyne), Jacob Evans (Aerojet Rocketdyne), Timothy Kokan (Aerojet Rocketdyne), Daniel J. H. Levack (Aerojet Rocketdyne), Rodney Noble (Aerojet Rocketdyne), Christopher Reynolds (Aerojet Rocketdyne)
