March 21, 2026

Aalo Completes Assembly of its Aalo-X Test Reactor ()

Aalo Atomics has completed assembly of its Aalo-X Critical Test Reactor at Idaho National Laboratory, with fuel delivery imminent and final DOE approval pending, and expects to achieve criticality within weeks, ahead of the July 4 deadline this summer...

March 20, 2026

DOE Expects Up to Four Reactors to Reach Criticality by July 2026 ()

DOE officials told a Senate committee that three to four reactors under the accelerated pilot program could reach criticality by July 4, 2026, with developers including Nucleation's Aalo and Radiant among those advancing through key safety and construction milestones...

March 7, 2026

DOE Approves Preliminary Safety Analysis for Aalo Atomics Demonstration Reactor ()

Aalo Atomics has become the second company in Nucleation’s portfolio to receive approval from the U.S. Department of Energy for the preliminary safety analysis of its reactor demonstration, marking a key regulatory milestone under DOE’s accelerated Reactor Pilot Program ahead of a targeted 2026 criticality...

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