As part of the OECD Nuclear Energy Agency’s engagement with the next generation of nuclear energy scholarship, Director General William Magwood IV and Deputy Director General Nobuhiro Muroya hosted students earlier this year from Tokyo Metropolitan Toyama High School.

The U.S. Nuclear Regulatory Commission this week shared a portion of the construction permit application from the Tennessee Valley Authority to build a small modular reactor at the Clinch River nuclear site in Oak Ridge, Tenn.

In anticipation of TVA’s filing, NRC staff scheduled two public meetings in Oak Ridge for today, to discuss the agency’s process for licensing nuclear power plants.

Excitement around fusion has only grown this year since the French magnetic confinement fusion tokamak known as WEST maintained a plasma for 1,337 seconds in February, toppling the 1,006-second record set by China’s EAST a few weeks prior. Investment, legislation, and new research are riding this new surge of attention, but fusion development has a long history.

President Donald Trump released his discretionary budget request Friday, stirring up questions from nuclear advocates about how the federal funding earmarked for domestic energy would fare.

Garrish

A veteran nuclear leader with more than four decades of experience testified before a U.S. Senate committee on Wednesday as part of the nomination process to become the next NE-1, the Department of Energy’s assistant secretary for nuclear energy.

Theodore “Ted” Garrish appeared before the Senate Committee on Energy & Natural Resources to answer questions about how he would approach the position—which he last held from 1987 to 1989, during the Ronald Reagan administration.

Garrish told the committee he has dedicated his career to energy—especially nuclear energy—and has worked mostly in public service positions, including posts in the DOE and Office of International Affairs.

The committee will advance Garrish’s nomination to the full U.S. Senate for a final vote, but no timeline was laid out.

A disruption in Spain’s energy grid around 12:30 p.m. local time on April 28 left tens of millions of people without power—and put Prime Minister Pedro Sánchez in the hot seat to provide answers.

International Atomic Energy Agency director general Rafael Mariano Grossi recently traveled to Washington, D.C., for the first time since Trump took office in January. In his three-day visit to the capital, Grossi spoke with key nuclear leaders from around the world and in the federal government, including Energy Secretary Chris Wright and Nuclear Regulatory Commission chair David Wright, on topics including nuclear power, safety, security, funding, and nonproliferation.

The Department of Energy’s Office of Environmental Management said that crews with the Oak Ridge Office of Environmental Management (OREM) and its cleanup contractor UCOR are preparing to demolish another deteriorating Manhattan Project–era building at the Y-12 National Security Complex at Oak Ridge, Tenn.

Amy Whitley has been selected by the American Nuclear Society and American Society of Mechanical Engineers to receive the 2025 ANS/ASME Barry Sloane Memorial Scholarship. The scholarship, which was established in 2024 to recognize an undergraduate student pursuing a degree in mechanical or nuclear engineering, honors contributions of the late Barry Sloane, a past member of the ANS/ASME Joint Committee on Nuclear Risk Management (JCNRM).

Curiosity landed on Mars sporting a radioisotope thermoelectric generator (RTG) in 2012, and a second NASA rover, Perseverance, landed in 2021. Both are still rolling across the red planet in the name of science. Another exploratory craft with a similar plutonium-238–fueled RTG but a very different mission—to fly between multiple test sites on Titan, Saturn’s largest moon—recently got one step closer to deployment.

On April 25, NASA and the Johns Hopkins University Applied Physics Laboratory (APL) announced that the Dragonfly mission to Saturn’s icy moon passed its critical design review. “Passing this mission milestone means that Dragonfly’s mission design, fabrication, integration, and test plans are all approved, and the mission can now turn its attention to the construction of the spacecraft itself,” according to NASA.

The International Atomic Energy Agency announced that its Nuclear Technology for Controlling Plastic Pollution (NUTEC Plastics) initiative has partnered with Ecuador’s Oceanographic Institute of the Navy (INOCAR) and Polytechnic School of the Coast (ESPOL) to build microplastic monitoring and analytical capacity to address the growing threat of marine microplastic pollution in the Galapagos Islands.

Here is a recap of industry happenings from the recent past:

ADVANCED REACTOR MARKETPLACE

TerraPower’s Natrium reactor advances on several fronts

TerraPower has continued making aggressive progress in several areas for its under-construction Natrium Reactor Demonstration Project since the beginning of the year. Natrium is an advanced 345-MWe reactor that has liquid sodium as a coolant, improved fuel utilization, enhanced safety features, and an integrated energy storage system, allowing for a brief power output boost to 500-MWe if needed for grid resiliency. The company broke ground for its first Natrium plant in 2024 near a retiring coal plant in Kemmerer, Wyo.

The American Nuclear Society presented the Illinois Institute of Technology with a plaque last week to officially designate the Armour Research Foundation Reactor a Nuclear Historic Landmark, following the Society’s decision to confer the status onto the reactor in September 2024.

DTE Energy, the owner of Fermi nuclear power plant in Michigan, is considering an extended uprate for Unit 2 that would increase its 1,100-MW generation capacity by 150 MW.

The Department of Energy’s Office of Environmental Management has awarded a five-year contract worth up to $74.8 million to Independent Strategic Management Solutions for professional support services at the Oak Ridge Office of Environmental Management site in Oak Ridge, Tenn.

Gov. Katie Hobbs put the brakes on legislation that would have eliminated some of Arizona’s regulations and oversight of small modular reactors, technology that is largely under consideration by data centers and heavy industrial power users.

Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.

Utah-based waste management company EnergySolutions announced that it has signed a memorandum of understating with the Intermountain Power Agency and the state of Utah to explore the development of advanced nuclear power generation at the Intermountain Power Project (IPP) site near Delta, Utah.

Advanced nuclear company Oklo Inc. has new leadership for its board of directors as billionaire Sam Altman is stepping down from the position he has held since 2015. The move is meant to open new partnership opportunities with OpenAI, where Altman is CEO, and other artificial intelligence companies.

Pacific Fusion has a staff that knows its way around pulsers and inertial fusion, and an ongoing collaboration with General Atomics. Today, the two companies are announcing plans to test Pacific Fusion’s pulser-driven inertial fusion energy concept, with commercial fusion power as the goal.

“We are building a fusion machine and testing all equipment—including components and a pulser module—at our Pacific Fusion test center,” Pacific Fusion cofounder and chief technology officer Keith LeChien told Nuclear News. “GA’s engineering expertise remains an important part of our progress, and we expect this collaboration to continue through future phases of development.”