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Keyword：U.S.
U.S. Idaho National Laboratory (INL) Develops New Vacuum Attachment for Nuclear Fallout Collection
Nuclear nonproliferation researchers at Idaho National Laboratory (INL) have invented a specialized attachment compatible with commercial handheld vacuum cleaners, designed to safely and efficiently collect radioactive fallout generated after a nuclear explosion. The intense heat from a nuclear blast lifts ground debris into the atmosphere, where it melts and cools into radioactive glass beads less than 1 millimeter in diameter that fall back to the ground. In the past, nuclear experts undergoing training could only collect samples using brooms, dustpans, and ordinary household battery-powered vacuum cleaners, making manual containment difficult and posing extremely high radiation exposure risks. The INL team began producing prototypes with a thermoplastic 3D printer in 2017, and after multiple rounds of iteration, has now commissioned a company in American Falls, Idaho, to mass-produce the attachment using industrial-grade 3D printing, significantly improving durability.
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. Nuclear Power Consulting Firm EXCEL Services Officially Enters Vietnamese Market
U.S. nuclear power technology consulting firm EXCEL Services Corporation has established a subsidiary in Vietnam and is actively collaborating with domestic partners, coinciding with the restart of Vietnam's nuclear power projects. This move marks further development of bilateral cooperation in the nuclear energy sector. Currently, Vietnam is restarting its nuclear power development plans, attracting attention from numerous international partners. On July 28, EXCEL Services Corporation announced the establishment of its Vietnamese subsidiary and signed a Memorandum of Understanding (MoU) with the National Innovation Center (NIC) and Ho Chi Minh City University of Technology, while actively advancing more cooperation agreements with Vietnamese government agencies and enterprises. James Voss has been appointed as...
2026-07-30
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
U.S. Fusion Energy Company CFS Completes $1 Billion Equity Financing
U.S. fusion energy startup Commonwealth Fusion Systems (CFS) announced on July 30 that it has completed $1 billion in new equity financing. The company stated that this is one of the largest single-round financings globally for a fusion energy company since its $1.8 billion Series B round in 2021. To date, CFS has raised a total of $4 billion, accounting for nearly 30% of the cumulative global fusion industry financing. Headquartered in Devens, Massachusetts, CFS was founded in 2018. The company is primarily advancing the SPARC fusion demonstration device and the ARC commercial fusion power plant project. Fusion reactions release energy by combining light atoms such as hydrogen under extremely high temperatures and pressures, and are considered a potential low-carbon energy pathway. However, fusion reactors are still in the experimental and engineering validation stage, with related technologies facing challenges such as material resistance to neutron bombardment and improving reaction efficiency.
2026-07-30
U.S. Department of Energy Selects Five States to Explore Building Nuclear Lifecycle Innovation Hubs
The U.S. Department of Energy (DOE) announced on July 28 that it has selected Utah, Tennessee, Oklahoma, Louisiana, and Idaho as potential host states for Nuclear Lifecycle Innovation Hubs. The DOE has signed memorandums of understanding with these five states and will continue to evaluate the conditions and plans for hosting the hubs in each state. On January 28 of this year, the DOE issued a Request for Information, inviting states to express interest in building Nuclear Lifecycle Innovation Hubs. The proposed hubs are intended to support full lifecycle activities for nuclear fuel, including fuel fabrication, uranium enrichment, spent nuclear fuel reprocessing, and waste disposal. Depending on state priorities and regional capabilities, the hubs may also accommodate...
2026-07-30
Public Meeting Held on Restart Plan for Three Mile Island Unit 1
As electricity demand from AI-related data centers rises, multiple locations across the United States are reassessing the value of nuclear reactors originally slated for decommissioning. Recently, the restart plan for Unit 1 of the Three Mile Island Nuclear Power Plant in eastern Pennsylvania has entered the public engagement phase. The Three Mile Island plant has long been under scrutiny due to the 1979 accident at Unit 2, which involved a nuclear fuel meltdown and the release of radioactive materials. The proposed restart involves the adjacent Unit 1, which has been in the decommissioning process since 2019. Upon restart, it will operate under the name "Crane Clean Energy Center." On July 28, the U.S. Nuclear Regulatory Commission...
2026-07-30
NextEra and Brookfield Plan $100 Billion Data Center Campus at Former Paducah Uranium Enrichment Site in the U.S.
NextEra Energy and Brookfield Asset Management plan to develop a data center campus and supporting power generation facilities with a total investment exceeding $100 billion at a federally owned former uranium enrichment site in Paducah, Kentucky, USA. The project is located on or near the U.S. Department of Energy (DOE) Paducah site. According to relevant announcements, the campus is expected to provide over 1.2 gigawatts of data center computing capacity and deliver up to 1.8 gigawatts of power to the grid. The project is scheduled to begin operations in 2028 and reach full development approximately four years later; other information indicates that overall construction is expected to be completed around 2031.
2026-07-30
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
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
The IAEA says it has not yet received a request to verify nuclear cooperation between the U.S. and Saudi Arabia.
The International Atomic Energy Agency (IAEA) stated on July 23 that it is aware of plans by the United States and Saudi Arabia to request the agency to conduct verification activities regarding a nuclear cooperation agreement currently under discussion b
2026-07-27