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...

March 3, 2026

Aalo Secures Fuel Fabrication Contract with Global Nuclear Fuel ()

Aalo Atomics has signed a fuel fabrication contract with Global Nuclear Fuel, a GE Vernova-led alliance with Hitachi, to supply low-enriched uranium fuel rods for the Aalo-X reactor ahead of its targeted 2026 criticality at Idaho National Laboratory...

February 25, 2026

DOE Reactor Pilot Program Advances Toward July 2026 Criticality Target ()

Portfolio companies, Radiant Nuclear and Aalo Atomics, are among a select group of reactor developers that are progressing under DOE’s accelerated Reactor Pilot Program, targeting criticality by July 4, 2026, through streamlined federal authorization pathways.

February 23, 2026

INL and NVIDIA Partner to Advance AI-Driven Nuclear Deployment ()

Idaho National Laboratory is partnering with NVIDIA as part of the DOE-backed Genesis Mission to integrate AI and accelerated computing into reactor design, licensing, and operations, leveraging national supercomputing infrastructure to support digital twins, advanced simulation, and deployment acceleration...

February 18, 2026

Radiant Adds Lockheed Martin as Strategic Investor in Oversubscribed Round ()

In an already oversubscribed Series D round, Radiant has added Lockheed Martin as a strategic investor, reinforcing defense-sector alignment ahead of first reactor startup and commercialization of its Kaleidos microreactor...

February 9, 2026

Radiant Advances to Final DOE Authorization Phase for Kaleidos Reactor ()

Radiant has received DOE approval of its Preliminary Documented Safety Analysis for the Kaleidos reactor, marking the first full-power test approved under the DOE’s new authorization pathway and paving the way for final startup authorization at INL’s DOME facility...

© 2026 Nucleation Capital | Terms & Policies

linkedin, for social media footer
X-logo, for social media footer
Nucleation transparent