Three mini-nuclear reactors achieve criticality at Idaho National Laboratory

Three new mini-nuclear reactors have successfully achieved criticality, meeting a presidential deadline. These Aalo-X reactors, developed by Aalo Atomics, underwent testing at the Idaho National Laboratory. This milestone fulfills President Trump's challenge to jumpstart reactor startups by July 4, 2026. Other companies like Valar Atomics, Antares Energy, and Deployable Energy have also recently achieved criticality, signaling a new era in nuclear technology development.