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Additively Manufactured CrMoTaTiV Refractory Alloy Demonstrates Excellent Radiation Resistance

A materials study released on July 31 shows that a research team used laser powder directed energy deposition (LP-DED) technology to fabricate a novel Cr₁₀Mo₂₅Ta₂₅Ti₁₅V₂₅ refractory complex concentrated alloy and systematically evaluated its structural stability and mechanical properties under irradiation environments. The study targets the demand for high-temperature, high-irradiation structural materials in next-generation nuclear fission and fusion devices. In the study, samples were subjected to 3.5 MeV Fe²⁺ ion irradiation at the Ion Beam Materials Laboratory of Los Alamos National Laboratory in the United States, at irradiation temperatures of room temperature and 650°C, with local doses reaching approximately 1.8, 6, and 18 dpa. Microstructural analysis...

2026-08-01

Buried Cesium-137 Sealed Source Discovered by Texas Patrol Officer Near Roadside in Midland County

According to the Texas Department of Public Safety, a corporal with the department recently discovered a buried cesium-137 sealed radioactive source with an activity of 100 millicuries during a routine patrol near a roadway in Midland County. The incident resulted in no injuries or radiation contamination, and public safety was not threatened. On July 24 local time, the corporal, assigned to the department's Radioactive/Nuclear Threat Detection Section, was patrolling near South County Road 1210 when the vehicle-mounted radiation detection system activated. He then used other detection equipment to survey the surrounding area and traced the radiation signal to an underground location. To ensure safe disposal, he requested assistance from local, state, and federal...

2026-08-02

U.S. Explores New Methods for Lunar Ice Detection Using Synchrotron X-ray Microtomography and Seismic Models

On July 31, researchers at Lawrence Berkeley National Laboratory, in collaboration with scientists from the University of Maryland and the University of Hawaii, proposed a new method for locating subsurface ice deposits on the Moon using seismic waves. The findings, published in the journal Science Advances, are expected to provide a reference for interpreting detection data and locating water resources in future lunar landing missions. The research focuses on how subsurface lunar materials respond to seismic waves. The team developed computational models to predict the behavior of lunar subsurface media of varying compositions under seismic wave excitation. Experimental results showed differences in seismic response between ice-bearing and dry rocks, indicating that seismological methods have the potential to identify ice layers buried beneath lunar regolith and rock.

2026-08-01

Follow-up consultations on ROK-US nuclear-powered submarine and nuclear cooperation agreement progress slowly

According to a South Korean diplomatic source on July 31, South Korea and the United States have yet to finalize the schedule for the second working-level consultation, and the follow-up talks originally planned for July have not yet taken place. The consultations are aimed at implementing the security-related agreements outlined in the joint statement issued at last year's summit between the two countries, including South Korea's introduction of nuclear-powered submarines and the revision of nuclear cooperation arrangements regarding uranium enrichment and spent nuclear fuel reprocessing. The two sides previously held their first working-level consultation in Seoul on the 2nd and 3rd of last month. U.S. Under Secretary of State for Political Affairs Allison Hooker led a cross-agency delegation to South Korea at the time to discuss the implementation of the security agreement with the South Korean side. Observers...

2026-08-02

U.S. Team Traces Source of Anomalous Gamma Rays from Zinc-70, Nuclear Magnetic Transitions May Improve Models of Heavy Element Formation

An international research team led by scientists from the Facility for Rare Isotope Beams (FRIB) at Michigan State University has recently identified the source of the large number of low-energy gamma rays emitted by zinc-70 nuclei. The study suggests that magnetic transitions occurring within the nucleus are the key reason for this anomalous signal enhancement. The findings were published in the journal Nature under the title "Magnetic character of the low-energy enhancement in 70Zn." Gamma rays are electromagnetic radiation released when excited atomic nuclei transition to lower, more stable energy levels. For a long time, scientists have observed an anomalous increase in the number of low-energy gamma rays in some atomic nuclei, known as the low-energy enhancement (LEE), but its physical mechanism had remained unclear...

2026-08-02

U.S. Navy Awards General Dynamics Electric Boat Contract for Construction of 14 Nuclear Submarines

General Dynamics Electric Boat announced that the U.S. Navy has awarded it a contract package for the construction of 14 nuclear submarines, with a total contract value of $76.6 billion. According to information released by the company, under this announced U.S. Navy contract framework, General Dynamics Electric Boat will receive $29.5 billion for the construction of five Columbia-class submarines, and an additional $42.1 billion for the construction of nine Virginia-class submarines. The contract also includes funding to support shipyard infrastructure construction. General Dynamics Electric Boat serves as the prime contractor for the program. A portion of the construction work will be subcontracted to Newport News Shipbuilding, a division of Huntington Ingalls Industries. ...

2026-08-01

Siemens Healthineers and Cleveland Clinic Launch 10-Year Strategic Alliance to Advance Innovation in Advanced Imaging and Radiation Oncology

On July 30, Siemens Healthineers and Cleveland Clinic announced the launch of a 10-year strategic alliance, building on their 35-year partnership to further drive clinical and workflow innovation, enhance patient care quality, and improve healthcare operational efficiency. Under the collaboration arrangement, Siemens Healthineers will provide Cleveland Clinic with a range of diagnostic imaging and treatment-related technologies, covering magnetic resonance imaging, computed tomography, radiation oncology, interventional radiology, and X-ray. Both parties stated that the alliance will focus on areas such as diagnostic imaging, cardiology, and radiation oncology, providing clinical teams with new tools and training support, and offering patients more...

2026-07-31

U.S. Research Team Tracks Main Drivers of Global Methane Rise Using Stable Isotope Analysis

A research team from the U.S. National Oceanic and Atmospheric Administration Global Monitoring Laboratory and the University of Colorado has recently traced the sources of the rapid rise in global atmospheric methane since 2007 through high-precision methane concentration measurements and carbon and hydrogen stable isotope analysis. The findings show that over the past two decades, microbial emissions have been the primary factor driving the increase in methane concentrations, while fossil fuel-related methane emissions may have remained relatively stable overall. A methane molecule consists of one carbon atom and four hydrogen atoms, and methane from different sources differs in its carbon and hydrogen isotope composition. Researchers used this chemical fingerprint to distinguish methane sources: fossil fuel methane such as natural gas typically contains a relatively higher proportion of carbon-13, while methane produced by microbial processes in wetlands, landfills, livestock, and agricultural environments has a lower carbon-13 proportion, exhibiting a "lighter" isotopic signature. The proportion of deuterium in hydrogen isotopes also varies with the way methane is formed, providing a further basis for source identification.

2026-07-31

U.S. Confirms Order for Nine Virginia-Class Block VI Nuclear Submarines

The U.S. Department of Defense has confirmed that it has signed a contract modification agreement with General Dynamics Electric Boat to order nine Virginia-class Block VI multi-purpose nuclear-powered submarines. The statement said the contract is an incentive-based modification, and the submarines will be used by the U.S. Navy. Despite delays in General Dynamics' previous orders, both parties have moved forward with this new contract. On July 15, U.S. President Donald Trump had asked the company's management to accelerate the construction progress of U.S. Navy submarines. In addition to the Virginia-class submarines, the U.S. Department of Defense has also ordered five Columbia-class Type II ballistic missile nuclear submarines from Newport News Shipbuilding. Under the contract arrangement, related work is expected to be completed before July 2038...

2026-07-31

U.S. Brookhaven National Laboratory Achieves Milestones in High-Luminosity Large Hadron Collider Upgrade

On July 29, the Large Hadron Collider (LHC) at CERN concluded its recent run and entered a four-year shutdown for maintenance. During this shutdown, some LHC components will be dismantled and rebuilt for the High-Luminosity LHC (HiLumi LHC) upgrade project. The U.S. Department of Energy's Brookhaven National Laboratory has recently achieved important production milestones in both accelerator and detector-related work. The LHC helps scientists study the fundamental structure of matter by accelerating and colliding two beams of protons traveling in opposite directions in a nearly 17-mile circular ring. The core goal of the HiLumi LHC upgrade is to significantly increase the number of particle collisions per unit time, i.e., enhance "luminosity," thereby increasing the chance of recording rare interactions.

2026-07-30

TerraPower Isotopes to Donate Actinium-225 via Oncidium Foundation to Support Cancer Treatment Accessibility

TerraPower Isotopes (TPI), a subsidiary of U.S. nuclear innovation company TerraPower, announced on July 29 that it will coordinate the donation of the rare medical isotope actinium-225 (Ac-225) through the Oncidium Foundation to support economically disadvantaged cancer patients in accessing targeted radionuclide therapy. The Oncidium Foundation is a non-profit organization dedicated to promoting global access to targeted radionuclide cancer treatments. Its RLT-Connect program aims to help financially challenged patients access relevant therapies, reducing treatment disparities caused by geographic and economic conditions. This donation also marks TPI's entry into Oncidium's collaborative ecosystem of radioisotope suppliers, medical practitioners...

2026-07-30

SuperCritical Obtains Exclusive License for Uranium Extraction from Seawater Technology, Plans Industrial Deployment in the United States

SuperCritical Materials Corp., a U.S. developer of nuclear fuel and critical materials infrastructure, announced on July 24 that it has obtained an exclusive license from Battelle Memorial Institute for a patented uranium adsorbent technology used to extract uranium from seawater. The technology was originally developed by Pacific Northwest National Laboratory (PNNL) and its research partners. Battelle Memorial Institute currently manages eight national laboratories for the U.S. federal government. SuperCritical stated that the technology has been verified to extract uranium from seawater...

2026-07-30

Indiana University Team Participates in Large Hadron Collider Detector Upgrade

On July 28, 2026, physicists from Indiana University are participating in an international scientific collaboration to install new particle detector components at the Large Hadron Collider (LHC) at CERN, located near Geneva, Switzerland, to enhance scientists' ability to study the fundamental building blocks of the universe. The Large Hadron Collider is currently the world's largest particle accelerator, which helps researchers explore the structure of matter and fundamental interactions by colliding protons at near-light speeds and analyzing the particles produced in the collisions. Indiana University is a member of the ATLAS experiment collaboration, which comprises approximately 245 institutions from over 40 countries, with thousands of scientists...

2026-07-29

Amentum Awarded $85 Million Contract to Provide Design Engineering Support for U.S. Navy Nuclear Infrastructure

On July 23, Amentum announced it had secured a three-year, $85 million contract to provide design and modernization support for infrastructure associated with the U.S. Navy’s nuclear propulsion program.Under the contract, Amentum will assist in

2026-07-27

The U.S. Department of Energy conditionally allocates HALEU fuel to NASA and Radiant.

On July 23, the U.S. Department of Energy (DOE) announced a conditional commitment to provide High-Assay Low-Enriched Uranium (HALEU) to NASA and Radiant Industries to meet near-term fuel needs. This marks the third round of HALEU allocations; the materia

2026-07-27