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Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
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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.
10:00–11:40AM MDT
Sweeney B|Fission Surface Power/Nuclear Electric Propulsion
Session Chair: Andrew Zillmer|Alternate Chair: Aditya Shivprasad
Coronado/DeVargas|Nuclear Thermal Propulsion
Session Chair: Christopher (Britton) Reynolds|Alternate Chair: Randy Bell
Panel|Sweeney F|Radioisotope Power Systems
Session Chair: Harsh Desai|Alternate Chair: Harsh Desai
Sweeney A|Radioisotope Power Systems
Session Chair: Nick R. Wozniak|Alternate Chairs: Nick R. Wozniak, Lauren Nelson
1:00–2:40PM MDT
Panel|Sweeney F|Fission Surface Power/Nuclear Electric Propulsion
Session Chair: Lindsay Kaldon|Alternate Chair: Vedant Mehta
Sweeney B|Nuclear Thermal Propulsion
Session Chair: Minghui Chen|Alternate Chair: Katey Lenox
Session Chair: Stacey L. Eaton|Alternate Chair: Ari Foley
3:15–4:55PM MDT
Session Chair: N. Dianne B. Ezell|Alternate Chair: Scott Wilson
Session Chair: Erofil Kardoulaki|Alternate Chair: Scarlett W. Paisner
Panel|Sweeney F|Nuclear Thermal Propulsion
Session Chairs: Lee S. Mason, Mohamed El-Genk
Session Chair: Gabrielle Lee|Alternate Chairs: Gabrielle Lee, Timothy Schriener
Session Chair: Michael C. Miller|Alternate Chair: Georgette Alexander-Morrison
Session Chair: Kate Kelly|Alternate Chair: Holly R. Trellue
Session Chair: Lindsey Holmes|Alternate Chair: Lindsey Holmes
Session Chair: Jake R. Matthews|Alternate Chair: Robert Wingo
Session Chair: Randy Bell|Alternate Chair: Andrew Zillmer
Session Chair: Katey Lenox|Alternate Chair: Mohamed El-Genk
Session Chair: Elizabeth Bluhm|Alternate Chair: Adam Parkison
Session Chair: Mikaela Blood|Alternate Chair: Mikaela Blood
Session Chair: Timothy Schriener|Alternate Chair: Randy Bell
Session Chair: Duane Barber|Alternate Chair: Duane Barber
Session Chair: Timothy Reuter
Session Chair: Scott Wilson|Alternate Chair: N. Dianne B. Ezell
Session Chair: Mikaela Blood|Alternate Chair: Katey Lenox
Session Chair: Nick Wozniak|Alternate Chair: Joe Giglio
11:40AM–1:00PM MDT
Sweeney CDE|Poster Session
Session Chair: Holly R. Trellue|Alternate Chair: Holly R. Trellue
Session Chair: Aditya Shivprasad|Alternate Chair: Caitlin A. Kohnert
Coronado/DeVargas|Nuclear Thermal Propulsion|Cosponsored by Radioisotope Power Systems
Session Chair: Stacey L. Eaton|Alternate Chair: Holly R. Trellue
Session Chair: Roberta Mulford|Alternate Chair: Amanda Robertson
Session Chair: Georgette Alexander-Morrison|Alternate Chair: Aditya Shivprasad
Session Chair: Doug Burns|Alternate Chair: Doug Burns
Session Chair: Tim Tinsley|Alternate Chairs: Tim Tinsley, Tim Gregory
