Dossier
Executive Order 14301
Coverage of Executive Order 14301 in the Nexus archive.
- Antares reaches reactor criticality under Trump pilot program, marking major nuclear milestone
Antares Nuclear's Mark-0 microreactor achieved criticality at Idaho National Laboratory under the U.S. Department of Energy's Reactor Pilot Program, established via President Trump's 2025 executive order. This marks the first advanced reactor to reach criticality under the program and the first privately developed non-light-water reactor in the U.S. in over four decades.