Idaho National Laboratory has announced that the National Reactor Innovation Center’s Molten Salt Thermophysical Examination Capability (MSTEC) facility will begin operations in March 2026.

Providing testing capabilities for molten salts, including fuel salts, MSTEC extends INL’s abilities to advance molten salt reactor technology and provide data needed for safe reactor deployment.

Idaho National Laboratory and computer chip maker Nvidia have announced a public-private partnership to advance nuclear energy deployment through artificial intelligence. According to INL, the collaboration aims to cut reactor development times in half and reduce operational costs by 50 percent by using AI to design, license, manufacture, construct, and operate reactors with human-in-the-loop workflows.

At Idaho National Laboratory, researchers have built a bridge between computer models and the lab’s Microreactor Applications Research Validation and Evaluation (MARVEL) microreactor.

Tony Crawford, an INL researcher and MARVEL’s reactivity control system lead, designed a phone booth–sized surrogate nuclear reactor called ViBRANT, or Visual Benign Reactor as Analog for Nuclear Testing, which uses light instead of neutrons to show a “nuclear” reaction.

As the energy sector faces mounting pressure to grow at an unprecedented pace while maintaining reliability and affordability, nuclear technology remains an essential component of the long-­term solution. Southern Company stands out among U.S. utilities for its proactive role in shaping these next-­generation systems—not just as a future customer, but as a hands-­on innovator.

Sometimes, cops and robbers is more than just a kid’s game. At the Department of Energy’s national laboratories, researchers are channeling their inner saboteurs to discover vulnerabilities in next-generation nuclear reactors, making sure that they’re as safe as possible before they’re even constructed.

The Department of Energy’s Office of Nuclear Energy announced the establishment of the Center for Used Fuel Research (CUFR), to be hosted at the Idaho National Laboratory and focused on spent nuclear fuel performance, canister aging, and the fostering of innovation and collaboration.

According to the DOE, the CUFR is designed to be a national and international hub for applied research that supports and maintains compliance and advances public confidence in the safe storage and transportation of both commercial and DOE-managed spent fuel.

Each year, the Department of Energy’s Nuclear Energy University Program (NEUP) recognizes graduate and undergraduate students for their innovative nuclear energy research. The winners of the Innovations in Nuclear Energy Research and Development Student Competition (INSC) receive honoraria along with travel and conference opportunities, including the chance to present their publications at the annual American Nuclear Society Winter Conference & Expo.

Idaho National Laboratory has announced the creation of the first batch of enriched uranium chloride fuel salt for the Molten Chloride Reactor Experiment (MCRE). INL said that its fuel production team delivered the first fuel salt batch at the end of September, and it intends to produce four additional batches by March 2026. MCRE will require a total of 72–75 batches of fuel salt for the reactor to go critical.

Idaho National Laboratory has selected five teams for its Microreactor Application Research Validation and Evaluation (MARVEL) Project to develop a sodium-potassium–cooled microreactor designed to test microreactor applications, create regulatory processes, and explore electrical and nonelectrical uses.

This week, BWX Technologies, alongside Idaho National Laboratory and the Department of Defense’s Strategic Capabilities Office, announced the arrival of a full core of TRISO fuel at INL’s Transient Reactor Test Facility.

The Nuclear Regulatory Commission announced that it has received the first portion of a construction permit application from Oklo subsidiary Atomic Alchemy that requests permission to build four nonpower reactors for a radioisotope production facility at Idaho National Laboratory. The submission is now available for public inspection on the NRC website.

The “space race” is once again making headlines, with technology worthy of the 21st century. Like the Cold War–era competition, this race too is about showcasing power—but this time it's nuclear power.

A new article in Power Technology examines the competing efforts of the United States, Russia, and China as they strive to be the first to put a nuclear reactor on the moon to power a lunar base, detailing the technical challenges and international rivalries.

Advanced reactor and fuel developer X-energy has officially begun confirmatory irradiation testing at Idaho National Laboratory on its TRISO-X fuel. The testing, which is taking place over the course of the next 13 months, will evaluate the fuel across a variety of operating scenarios and—if all goes according to plan—will be instrumental in qualifying it for commercial use.

At the American Nuclear Society’s Winter Conference & Expo, leaders of advanced reactor start-ups Radiant Industries, Oklo, and Valar Atomics praised the Department of Energy’s Reactor Pilot Program, in which the companies are participating. The program aims to get at least three reactors on line by July 4, 2026.

The Department of Energy’s Office of Environmental Management has issued a request for offer (RFO) seeking proposals from U.S. companies to build and power AI data centers on the DOE’s Paducah Site in Kentucky. Companies are being sought to potentially enter into one or more long-term leasing agreements at the site that would be solely funded by the applicants.

Idaho National Laboratory is playing a key role in helping the U.S. Department of Energy meet near-­term needs by recovering HALEU from federal inventories, providing critical support to help lay the foundation for a future commercial HALEU supply chain. INL also supports coordination of broader DOE efforts, from material recovery at the Savannah River Site in South Carolina to commercial enrichment initiatives.

At the Idaho National Laboratory Hot Fuel Examination Facility, containment box operator Jake Maupin moves a manipulator arm into position around a pencil-thin nuclear fuel rod. He is preparing for a procedure that he and his colleagues have practiced repeatedly in anticipation of this moment in the hot cell.

Nuclear waste disposal technology company Deep Isolation is asking that the National Association of State Energy Officials (NASEO) consider how spent nuclear fuel and radioactive waste will be managed under its strategy for developing advanced nuclear power projects in participating states.

Members of the OECD Nuclear Energy Agency’s Second Framework for Irradiation Experiments (FIDES-II) joint undertaking gathered from September 29 to October 3 in Ketchum, Idaho, for the technical advisory group and governing board meetings hosted by Idaho National Laboratory. The FIDES-II Framework aims to ensure and foster competences in experimental nuclear fuel and structural materials in-reactor experiments through a diverse set of Joint Experimental Programs (JEEPs).

The American Nuclear Society recently announced the designation of three new nuclear historic landmarks: the Hot Fuel Examination Facility (HFEF), the Neely Nuclear Research Center, and the Oak Ridge Gaseous Diffusion Plant. Today’s article, the first in a three-part series, will focus on the historical significance of HFEF.