Research & Applications

The Department of Transportation has announced an initiative to develop small modular reactors for commercial shipping. The U.S. Maritime Administration (MARAD) has launched a request for information (RFI) seeking industry input on the development of “a U.S.-built scalable, repeatable, commercially viable, system-centric, small modular reactor and their deployment within the marine transportation system.”

Clean Core Thorium Energy has announced the completion of its nearly two-year ANEEL fuel irradiation testing and qualification campaign at Idaho National Laboratory.

The idea behind ANEEL (Advanced Nuclear Energy for Enriched Life) fuel is to provide existing pressurized heavy water reactors with a fuel option that has increased high-burnup performance without requiring any modification to the reactors.

A new prototype ion engine known as a lithium-fed magnetoplasmadynamic (MPD) thruster has passed a crucial test at NASA. The space agency is hoping to eventually combine this technology with nuclear fission to produce power and thrust for lengthy space flights, such as a crewed mission to Mars.

Ames National Laboratory has announced a new tool that combines artificial intelligence and physics-based modeling to identify materials that can be used in fusion systems, where materials must withstand intense heat, radiation, and mechanical stress.

The University of Utah announced that it will be producing electricity with its TRIGA reactor for the first time this summer. The project is in collaboration with Elemental Nuclear Energy, and the electricity will be used to power a “mini AI data center.”

As the United States faces surging electricity demand driven by artificial intelligence, data centers, and a push to bring manufacturing back home, Idaho National Laboratory is leading an effort to modernize and expand the nation’s nuclear power capabilities by revamping the Department of Energy’s Light Water Reactor Sustainability (LWRS) Program.

Oklo announced a new partnership with Los Alamos National Laboratory and Nvidia to perform AI-enabled research on nuclear infrastructure and fuel.

The partnership is focused on exploring plutonium-bearing fuels, including the development of science-based AI models to support fuel validation and materials science and fabrication research and development. The team will also be exploring the development of nuclear-powered AI computing centers at LANL.

The International Atomic Energy Agency has launched a five-year coordinated research project (CRP) to strengthen plant health preparedness using nuclear and related technologies.

Wheat blast, potato late blight, potato bacterial wilt, and cassava witches broom disease can spread quickly across large areas of land, leading to severe yield losses in key crops for food security. Global trade and climate change have increased the likelihood of rapid, transboundary spread.

The Department of Energy’s Office of Nuclear Energy and the National Reactor Innovation Center have announced their first selections for the Nuclear Energy Launch Pad: three companies developing microreactors and one developing fuel supply.

The four companies—Deployable Energy, General Matter, NuCube Energy, and Radiant Industries—were selected from the initial pool of Reactor Pilot Program and Fuel Line Pilot Program applicants, the two precursor programs to the launch pad.

Kate Kelly

For decades, the thrill of space exploration has ignited the imaginations of engineers, scientists, and innovators alike. The dream of expanding humanity’s reach beyond Earth continues to attract the brightest minds, fueling groundbreaking advancements. As we set our sights on missions that venture farther and last longer in the cosmos, one truth stands out: Nuclear technology is the key to unlocking these bold ambitions. Its impact goes far beyond any single mission, driving a surge of momentum that not only propels space exploration but also energizes the entire nuclear ecosystem—sparking innovation and growth in an era of unprecedented opportunity.

Nuclear rocket propulsion has been investigated for decades, and NASA and the Atomic Energy Commission carried out significant testing in the 1960s as part of the Nuclear Engine for Rocket Vehicle Application program. NERVA chased the potential of the efficiency and energy density of nuclear thermal propulsion to extend our reach to new space frontiers before the program ended in 1973.

The Department of Energy is asking for industry input on the United States’ readiness to produce “up to four space reactors within five years,” according to a request for information that opened on Tuesday.

With a quick turnaround—the deadline for responses is May 5—the RFI asks for an assessment of gaps or challenges related to reactor design, long-lead-time components, and fuel allocation or production.

The OECD Nuclear Energy Agency’s International Regulatory Laboratory (RegLab) Project, which brings together experts from across the nuclear field to examine the potential impact of emerging technologies, has released a report on its first cycle that details the outcomes of a RegLab focused on the use of artificial intelligence in real-time monitoring of nuclear power plants.

Participants started out with an initial problem/opportunity statement, from which they developed a use case and a mock safety, security, safeguards, and environmental protection (SSSE) case. Then, over the course of two workshops, participants considered these cases in depth.

Earlier today, Zeno Power announced the completion of the final design review for an americium-241–fueled radioisotope power system (RPS) developed for Harmonia RPS, a NASA Artemis Tipping Point project.

The Harmonia RPS project will now begin the build and fabrication phase. Zeno plans to complete a terrestrial demonstration of an electrically heated system in early 2027 and is aiming for flight qualification for lunar missions beginning in 2028.

A comparison of real SEM tungsten microstructures (left column) with machine learning–generated synthetic microstructures (right) for different values of the model setting parameters. Adjusting the model setting controls how diverse or sharp the synthetic microstructures appear. (Image: ORNL, DOE)

Researchers have developed a model to generate images that serve as synthetic data close-ups of tungsten surfaces under fusion reactor conditions.

Tungsten is a top-choice material for plasma-facing components (PFCs) in fusion machines, so understanding tungsten’s performance is critical to the safety and longevity of component designs.

The predawn darkness on a cool Florida night was shattered by the ignition of nine Merlin engines on a SpaceX Falcon 9 rocket. The thrust of the engines shook the ground miles away. From a distance, the rocket appeared to slowly rise above the horizon. For the cargo onboard, the launch was anything but gentle, as the ignition of liquid oxygen generated more than 1.5 million pounds of force. After the rocket had been out of sight for several minutes, the booster dramatically returned to Earth with several sonic booms in a captivating show of engineering designed to make space travel less expensive and more sustainable.

A White House Office of Science and Technology Policy (OSTP) memorandum released on Tuesday guides NASA, the Department of Energy, and the Department of Defense on their roles in deploying near-term space nuclear power.

This follows a series of NASA announcements last month—driven by the executive order “Ensuring American Space Superiority,” issued by Trump in December—including an ambitious timeline for establishing a moon base, which would rely on fission surface power (FSP) to survive the long lunar night at the moon’s south pole, and plans for a nuclear electric propulsion (NEP) rocket to be launched in 2028.

Scientists at Argonne National Laboratory have published a study evaluating the risk of flooding caused by tropical cyclones on coastal infrastructure, including nuclear power plants. The study, published in npj Natural Hazards, used advanced computer simulations of thousands of cyclone scenarios to make projections of potential damage of extreme storm tides in coastal areas—a threat that is expected to increase as a result of climate change. The researchers stated that their projections could be used to make siting decisions and design more resilient systems for nuclear power plants, hospitals, and other crucial infrastructure.

The Department of Energy has continued to roll out announcements of Nuclear Energy University Program (NEUP) awards for fiscal year 2025. Last week, the agency announced the recipients of 11 Consolidated Innovative Nuclear Research Phase II Continuation (CINR II) awards, totaling $5.9 million.

University-led teams with current CINR R&D and Integrated Research Project awards are eligible to apply for CINR II awards, which provide opportunities for teams that have performed high-quality work through NEUP-funded projects to propose new projects that complement and enhance ongoing NEUP research.

Los Alamos National Laboratory has announced the development of a new type of neutron sensor that works across a wide range of conditions, including in the presence of strong gamma radiation.

The technology is called the Integrated Composite Optical Neutron Sensor (ICONS).