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Carbon isotope analysis reveals: Canadian Arctic seabed sediments can sequester part of permafrost organic carbon

News dated August 3, 2026: Researchers from the Alfred Wegener Institute and the Center for Marine Environmental Sciences at the University of Bremen conducted a study on permafrost coasts near Herschel Island (Qikiqtaruk) in Canada, finding that not all terrestrial organic carbon released by Arctic permafrost thaw and coastal erosion enters the atmosphere—a significant portion is instead stored in seabed sediments. The findings have been published in the journal *Nature Geoscience*. Arctic terrestrial permafrost ecosystems store approximately 130 billion tons of carbon from organic sources such as plant debris, while marine and river delta sediments contain an additional 40 billion tons. As Arctic warming accelerates...

2026-08-04

Lead isotope analysis of Roman sling bullets points to two supply routes in the Alpine conquest campaign

A lead isotope study of Roman lead sling bullets suggests that the Roman army's conquest of the Alps under Augustus may not have proceeded along a single continuous route, but rather involved different units or different supply systems. The objects studied come mainly from the Crap Ses site in the Surseiva valley of the canton of Graubünden, Switzerland, as well as from Brigantium and Tasgetium near Lake Constance further north. Over the past 25 years, archaeologists have discovered marching camps, battlefields, observation posts, small fort remains, as well as swords, shields, hobnails, coins, and nearly 500 lead sling bullets near Crap Ses. Many of these bullets bear inscriptions of the Third Legion...

2026-08-04

Czech Republic Leads EU Project to Assess Application of Commercial-Grade Items in VVER Nuclear Power Plants

The Czech State Office for Nuclear Safety (SÚJB) has launched a two-year EU project focused on assessment methodologies for the application of high-quality commercial-grade items in nuclear power plants equipped with VVER reactors. The project aims to establish a unified, expert-judgment-based evaluation process that provides methodological support for nuclear facilities when introducing relevant items, while ensuring that nuclear safety requirements are not compromised. As the nuclear power supply chain landscape evolves, certain plant-specific components may face the need to be replaced by commercial-grade products. In response, regulatory authorities need to establish clear rules to review the suitability, quality assurance, and safety implications of substitute items. The project will focus on evaluating...

2026-08-04

Unveiling Extreme Heat: Z Boson Probes New Mechanisms of the "Hottest Matter in the Universe"

Using Z boson probes at the Large Hadron Collider (LHC), scientists have revealed new details about how the hottest matter in the universe—the quark-gluon plasma (QGP)—absorbs energy, challenging existing theoretical models. This research provides important clues for understanding the state of the early universe shortly after the Big Bang. To gain deeper insights into the QGP, physicists cleverly employ Z bosons as messengers. Since Z bosons do not interact with the QGP, they can traverse the plasma almost unaffected, precisely recording information about the initial state. By analyzing the momentum differences between μons produced from Z boson decays and their recoiling jets, scientists were able to determine the energy lost by quarks as they traverse the QGP...

2026-08-04

New Progress in Ion Dynamics Regulation in Nanofluidic Memristors by the Institute of Modern Physics, Chinese Academy of Sciences

Water-based nanofluidic ionic devices offer unique advantages in frontier fields such as brain-computer interfaces and biocompatible computing. Recently, the research team from the State Key Laboratory of Heavy Ion Science and Technology at the Institute of Modern Physics, Chinese Academy of Sciences, in collaboration with Lanzhou University, Hebei University of Geosciences, and other partners, successfully achieved stable ionic memristive effects in single-ion-track nanochannels. Through precise regulation, they realized programmable transitions between memristive and synaptic functions, providing a new technological pathway for the development of next-generation low-power neuromorphic computing hardware. The related results were published in the journal *Small* on July 22. Relying on the Heavy Ion Research Facility in Lanzhou (HIRFL), the researchers...

2026-08-04

GAO Report Urges DOE-EM to Learn from Canada, UK, France, and Belgium in Reshaping Nuclear Waste Cleanup Strategy

The U.S. Government Accountability Office (GAO) noted in a new report that countries such as Canada, France, and the United Kingdom have taken proactive measures in recent years to accelerate nuclear waste cleanup. The report recommends that the U.S. Department of Energy's Office of Environmental Management (DOE-EM) engage in strategic exchanges with these countries to identify and evaluate alternative approaches that could reduce risks, lower costs, or expedite cleanup activities. Currently, DOE-EM estimates its cleanup mission could cost between $641 billion and $840 billion and may not be completed until 2100. The report found that while DOE-EM has some level of exchange with other countries on nuclear cleanup, such exchanges are not strategic and lack proactive learning...

2026-08-04

Cosmic Rays "Probe" Soil Moisture from Above: Colorado State University Innovates Soil Moisture Monitoring Technology

Researchers at Colorado State University are utilizing a mobile cosmic-ray neutron rover to explore a novel soil moisture monitoring method. This technology is expected to provide data support for hydrological research, particularly in assessing the impacts of wildfires on landscapes. The rover is reportedly capable of estimating soil moisture over large areas by measuring changes resulting from the interaction of cosmic rays from outer space with hydrogen atoms in the soil. Unlike traditional sensors that only capture near-surface data at a limited number of points, or the coarse resolution of satellite remote sensing, this technology offers a mesoscale dataset that falls between the two, enabling more accurate mapping of moisture distribution...

2026-08-04

DuChemBio Completes Supply Chain for Prostate Cancer Radiopharmaceutical

DuChemBio, a Korean radiopharmaceutical company, announced on August 4 that it has completed the supply chain for ProstaSeek (active ingredient: 18F-plotupolastat), a radiopharmaceutical for prostate cancer diagnosis, in the Yeongnam and Honam regions. The drug targets prostate-specific membrane antigen (PSMA), and all tertiary general hospitals in both regions that perform PET-CT scans and provide prostate cancer diagnosis and treatment have been included in its supply scope. According to data from the National Cancer Registry of the Korean Ministry of Health and Welfare, new prostate cancer cases reached 22,640 in 2023, accounting for 7.8% of all cancer cases and ranking sixth in male cancer incidence; with the increasing adoption of PSMA-targeted therapy, the demand for precise diagnosis before prostate cancer treatment is also growing rapidly.

2026-08-04

U.S. Navy Virginia-class nuclear submarine USS Vermont departs Yokosuka on August 1

The U.S. Virginia-class nuclear submarine USS Vermont departed Yokosuka Port on August 1. The city of Yokosuka disclosed the information on August 3. It is reported that USS Vermont entered Yokosuka Port on July 24 and departed at 1:49 p.m. on August 1. This port call was for crew rest, resupply, and maintenance. USS Vermont is one of the Virginia-class nuclear submarines, with hull number SSN-792. This was the second time USS Vermont entered Yokosuka Port. The first visit was on December 9, 2024. The previous port call also focused on rest, resupply, and maintenance. Since the beginning of this year, seven U.S. nuclear-powered vessels have visited Yokosuka Port...

2026-08-04

East China University of Technology Establishes School of Excellence in Nuclear Energy and Nuclear Technology Engineering

On August 1, East China University of Technology held the inauguration ceremony of the School of Excellence in Nuclear Energy and Nuclear Technology Engineering and the first meeting of its inaugural council at Guanglan Campus. Xiao Qian, member of the Party Committee of the Education and Work Commission of the Jiangxi Provincial Committee and Deputy Director of the Provincial Department of Education, Zhang Fuqing, Secretary of the Party Committee of East China University of Technology, Xia Fei, Deputy Secretary of the University Party Committee, and Li Mangen, member of the Standing Committee of the University Party Committee and Vice President, attended the ceremony. The meeting specially invited Zhao Zhongsheng, Associate Researcher at Tsinghua University and Deputy Secretary-General of the Chinese Society of Academic Degrees and Graduate Education, and Li Binghong, Researcher and Executive Dean of the School of Excellence in Engineering at Shenyang University of Technology, to deliver special reports. In his speech, Xiao Qian extended congratulations on the establishment of the School of Excellence in Nuclear Energy and Nuclear Technology Engineering at East China University of Technology. He pointed...

2026-08-04

BlueStar Fusion Completes "Angel+" Round Financing, High-Temperature Superconducting Stellarator Project Moves to Engineering Implementation Phase

Recently, Hefei BlueStar Fusion Technology Co., Ltd. (BlueStar Fusion, hereinafter referred to as "BlueStar Fusion") completed an Angel+ round of financing on the scale of several hundred million RMB, with a post-investment valuation exceeding 3 billion RMB. Following the completion of this financing round, the company will continue to advance the verification of key components, engineering manufacturing, and full-system integration of the high-temperature superconducting stellarator, with the goal of initiating the construction of the Phase I high-temperature superconducting stellarator system by 2027. BlueStar Fusion was established in August 2025 and is primarily engaged in the R&D and engineering of high-temperature superconducting stellarator technology. The company has assembled a professional team of nearly 100 members, covering fusion physics, superconducting magnets, structures and precision manufacturing, cryogenic engineering, artificial intelligence, and other disciplines. Ex...

2026-08-04

Romania purchases nuclear electricity from Ukraine via Moldova to fill gap left by Cernavoda Unit 1 outage

Romanian state-owned nuclear power company Nuclearelectrica announced on August 3 that it purchased electricity from Ukraine, using Moldova's state-owned power supplier Energocom as an intermediary. Although the specific transaction amount is confidential, the price will be determined at market rates. This purchase is intended to compensate for the power gap caused by the shutdown of Unit 1 at the Cernavoda Nuclear Power Plant, thereby mitigating the impact on Romania's energy market. According to the statement, the purchase price will reference official prices on regional spot exchanges, particularly during peak demand hours from 7 PM to 10 PM. Given the widespread heatwave and tight electricity demand currently affecting Romania and Europe, the market...

2026-08-04

Zhangzhou Energy Chemistry Laboratory Receives CNAS Accreditation

Recently, the Zhangzhou Energy Chemistry Laboratory received the laboratory accreditation certificate issued by the China National Accreditation Service for Conformity Assessment (CNAS). CNAS is the national accreditation body designated by the State Administration for Market Regulation in accordance with the Regulations of the People's Republic of China on Certification and Accreditation and the Measures for the Supervision and Administration of Accreditation Bodies, and its accreditation results can achieve international mutual recognition under the Mutual Recognition Arrangement of the International Accreditation Forum. The company's chemistry laboratory strictly benchmarked against CNAS-CL01:2018 "Accreditation Criteria for the Competence of Testing and Calibration Laboratories," and solidly advanced various foundational tasks including the preparation of system documents, implementation of quality control, enhancement of personnel skills, and metrological traceability of equipment. After trial operation, internal audit...

2026-08-04

Unit 2 of Romania's Cernavoda Nuclear Power Plant can only operate for about 5 more days due to the continuously declining water level of the Danube River

Unit 2 of Romania's Cernavoda Nuclear Power Plant is expected to operate for only about five days due to the declining water level of the Danube River. Romeo Urjan, the plant's director, stated that if the Danube's water level continues to drop at a rate of 2 to 3 centimeters per day, Unit 2 will soon cease operation. Unit 1 has already been shut down due to insufficient water flow. Urjan emphasized that despite this, Unit 2 continues to operate within normal parameters, and nuclear safety is not under any threat. To alleviate the situation, relevant authorities are preparing to deploy four barges to divert more water to the plant, hoping to raise the water level by 7 to 8 centimeters, thereby extending the plant's operating time. Related...

2026-08-04

Second Ring of Steel Containment Vessel for Reactor Building of Unit 2 at Xudabao Nuclear Power Plant Successfully Hoisted into Place

At 9:57 on August 4, the second ring of the steel containment vessel (hereinafter referred to as CV Ring 2) for the reactor building of Unit 2 at Xudabao Nuclear Power Plant was successfully hoisted into place. The CV Ring 2 hoisted this time is the third ring segment of the steel containment vessel for Unit 2, with a hoisting weight of nearly 890 tons. During the assembly phase, the installation of multiple discipline items, including annular air ducts, steel structural annular corridors, and U-shaped supports for air turbulence, was completed simultaneously for this module, effectively reducing the risk of cross-operation interference in subsequent internal construction of the nuclear island. This approach fully leveraged the advantages of modular construction and effectively translated the concept of "modularize wherever applicable, prefabricate wherever installable" into tangible engineering outcomes. During the assembly and hoisting of CV Ring 2 for Unit 2, Liaoning Nuclear Power, in collaboration with...

2026-08-04