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July 20, 2023, 7:01AMNuclear News

ORNL has developed an automated metrology system to produce Pu-238 pellets. (Photo: ORNL)

The Department of Energy recently shipped half a kilogram of plutonium oxide pellets from Oak Ridge National Laboratory to Los Alamos National Laboratory, the agency announced July 18, marking the largest such shipment since the DOE restarted domestic plutonium-238 production over a decade ago.

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Milestone for Zeno Power’s space nuclear battery

April 21, 2026, 3:58PMNuclear News

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...

NN Asks: What’s needed to get space nuclear off the ground?

April 27, 2026, 7:08AMNuclear NewsKate 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...

NASA’s Marshall Space Flight Center hosts nuclear propulsion cold-flow tests

April 24, 2026, 2:59PMNuclear NewsA Nuclear News photo feature

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...

DOE RFI probes barriers to space reactor production

April 24, 2026, 10:03AMNuclear News

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...

OSTP memo guides space nuclear plan

April 16, 2026, 12:00PMNuclear News

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...

Generative model explores tungsten microstructure under fusion conditions

April 20, 2026, 7:19AMNuclear News

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...

A year in orbit: ISS deployment tests radiation detectors for future space missions

April 17, 2026, 3:02PMNuclear NewsMichael Streicher

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...

New scintillating composite leads to versatile and inexpensive neutron sensor

April 13, 2026, 12:24PMNuclear News

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...

GAIN vouchers go to Constellation, Nano Nuclear, and NuCube

April 8, 2026, 9:25AMNuclear News

The Department of Energy’s Gateway for Accelerated Innovation in Nuclear (GAIN) has recently awarded three second-round fiscal year 2026 vouchers to support the development of advanced...

Panelists discuss U.S. path to criticality in ANS webinar

April 1, 2026, 3:08PMNuclear News

The American Nuclear Society recently hosted a panel discussion featuring prominent figures from the nuclear sector who discussed the industry’s ongoing push for criticality.Yasir Arafat,...

DOE ramps up plutonium oxide production to fuel NASA’s deep space missions

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