分类： science

Deep beneath the earth’s surface in Jiangmen, Guangdong province, an international scientific collaboration has achieved a monumental breakthrough in particle physics. The Jiangmen Underground Neutrino Observatory (JUNO), situated 700 meters underground, has released its first research results just two months after commencing operations, marking a significant advancement in humanity’s quest to understand the universe’s fundamental building blocks.

This ambitious project represents one of China’s largest international fundamental science initiatives, uniting over 700 scientists from 75 institutions across 17 countries and regions. The observatory features a massive spherical detector spanning 41 meters in diameter, equipped with 45,000 photomultiplier tubes surrounding 20,000 metric tons of liquid scintillator. Its strategic location 53 kilometers from southern China’s nuclear power plants provides ideal conditions for capturing neutrinos—near-massless particles traveling at near-light speed that hold keys to understanding matter’s origins, stellar evolution, and physics beyond the standard model.

The international collaboration faced extraordinary challenges, including constructing entirely new underground facilities from scratch and navigating pandemic restrictions that forced overseas scientists to work remotely. Despite these obstacles, the project demonstrated remarkable global cooperation, with countries contributing specialized expertise: Italy developed the liquid scintillation system, France provided cosmic muon tracking technology, and China’s Institute of High Energy Physics led detector design.

Marcos Dracos, French physicist and chair of JUNO’s Institutional Board, emphasized the project’s unprecedented scale: ‘Previous experiments were nothing compared to JUNO in terms of collaboration size, detector scale, or research context.’ The initial results have validated the decade-long design and construction period, confirming the detector meets all design expectations and positioning JUNO for advanced neutrino physics research over its planned 30-year operational lifespan.

Beyond scientific achievement, JUNO represents China’s strategic evolution from follower to leader in foundational scientific discovery. The project has enhanced China’s reputation as a global research hub while serving as a training ground for new generations of scientists and engineers. As researchers now focus on measuring neutrino mass ordering within approximately six years, the collaboration stands as a testament to international scientific cooperation’s power in pushing knowledge boundaries, demonstrating that while scientists have national affiliations, fundamental science truly knows no borders.

Japan’s ambitious space program encountered a significant setback on Monday morning when its flagship H3 rocket experienced a critical anomaly during ascent. The launch, conducted by the Japan Aerospace Exploration Agency (JAXA) from the Tanegashima Space Center, proceeded normally through initial stages before the second-stage engine unexpectedly terminated combustion ahead of schedule.

The H3 rocket represents Japan’s next-generation launch vehicle, developed as a more cost-effective and competitive alternative to existing rockets in the global space market. This mission carried substantial importance for Japan’s space ambitions and its positioning in the international satellite launch industry.

While the rocket achieved successful first-stage separation and ignition of the second stage, the premature engine shutdown prevented the vehicle from reaching its intended orbit. JAXA engineers immediately initiated data analysis to determine the root cause of the combustion anomaly. The incident marks another challenge for the H3 program, which has faced developmental hurdles since its inception.

The failure carries significant implications for Japan’s space logistics capabilities, particularly for resupply missions to the International Space Station and future scientific payloads. Space industry analysts are monitoring how this setback might affect Japan’s competitive stance against other space-faring nations and commercial launch providers.

Japan’s ambitious space program suffered a significant setback Monday when its flagship H3 rocket failed to deliver a crucial navigation satellite into orbit. The Japan Aerospace Exploration Agency (JAXA) confirmed the mission failure after the rocket’s second-stage engine experienced an unexpected premature cutoff during its flight from the Tanegashima Space Center.

The H3 rocket, carrying the advanced Michibiki 5 satellite intended to enhance Japan’s independent positioning capabilities, encountered critical technical issues moments after launch. JAXA officials revealed that the satellite separation could not be confirmed, leaving the payload’s whereabouts unknown. This marks the second failure for Japan’s next-generation launch vehicle following its problematic debut flight in March 2023.

Masashi Okada, JAXA’s launch director, stated that investigators are analyzing flight data to determine the exact cause of the engine malfunction. The failure represents more than just a technical setback—it delays Japan’s strategic plans to establish a fully independent satellite positioning system that would reduce reliance on America’s GPS network for critical applications including smartphone navigation, maritime operations, and drone technology.

The Japanese government responded immediately to the incident, with Science Ministry official Jun Kondo calling the failure “extremely regrettable” and establishing a special task force to investigate the cause and implement corrective measures. The H3 rocket, designed to replace Japan’s highly reliable H-2A launcher, represents a cornerstone of the country’s strategy to become more competitive in the global space market while enhancing national security capabilities.

Despite this setback, JAXA’s H3 project manager Makoto Arita emphasized the rocket’s potential for global competitiveness, vowing to thoroughly investigate the failure and return the program to operational status. The incident occurred just five days after JAXA aborted a previous launch attempt due to ground equipment abnormalities, highlighting the challenges facing Japan’s space ambitions.

In a remarkable scientific journey that began with childhood mountain dreams, Professor Zhu Maoyan has revolutionized our understanding of early life on Earth, culminating in his recent election as an academician of the Chinese Academy of Sciences—China’s highest scientific honor. The world-renowned paleontologist, whose work recently earned a spot in Science magazine’s 2024 Top 10 Scientific Breakthroughs, has dedicated his career to unraveling the mysteries of multicellular life that predate the Cambrian explosion.

Zhu’s extraordinary path to paleontological prominence started in Wangjiang county, Anhui province, where a high school classmate’s casual remark about geologists climbing mountains daily sparked his imagination. This simple fascination led him to Changchun College of Geology in the 1980s, where he specialized in paleontology due to its connection to biology. His academic pursuit continued at the Nanjing Institute of Geology and Paleontology, where he began his professional research career studying the internationally significant Chengjiang fossils—518-million-year-old specimens that provide unprecedented insight into ancient marine ecosystems.

Fieldwork presented early challenges that tested Zhu’s determination. During his first expedition to Yunnan’s remote fossil sites, he endured arduous travel conditions and treacherous mountain terrain, once climbing a steep slope during a rainstorm with such intense focus that he used both hands and feet to secure his position while searching for fossils.

After advanced research in Germany as a visiting scholar at the Technical University of Berlin from 1997-1999, Zhu returned to China through the Chinese Academy of Sciences’ talent program. He established his own research team at the Nanjing Institute, where decades of systematic investigation have yielded transformative discoveries.

The team’s most significant breakthrough came when Zhu guided doctoral student Miao Lanyun in discovering over 200 multicellular eukaryote fossil specimens in North China’s Yanshan Mountain region. These 1.63-billion-year-old fossils pushed back the appearance of complex multicellular life by 70 million years, fundamentally altering scientific understanding of evolutionary timelines. This finding demonstrates that eukaryotes developed multicellularity much earlier than previously believed, challenging the assumption that they remained single-celled for approximately one billion years.

Zhu emphasizes that paleontology satisfies humanity’s fundamental curiosity about origins while encouraging international collaboration. ‘Our perspective is global,’ he notes, highlighting that each continent possesses unique fossil resources that require multinational cooperation to fully utilize.

Now 61, Zhu continues to lead research exploring three primary areas: extending the study of complex life to earlier periods, investigating life’s origins and potential extraterrestrial life, and deepening understanding of the Cambrian explosion. He encourages young scientists to follow their passions rather than external pressures, stating: ‘When you believe something is worth doing and have the interest to support it, you won’t feel it is arduous.’

With China’s increased investment in paleontological research and expanding museum infrastructure, Zhu anticipates continued growth in the field, inspiring new generations to pursue scientific curiosity about life’s deepest mysteries.

Shanghai is currently hosting the nation’s most prestigious biological specimen exhibition, showcasing exceptional works from across China. The 6th China Animal Specimen Competition officially opened its doors on December 20, 2025, at the China-Israel (Shanghai) Innovation Hub in Putuo District.

The event features 738 carefully selected entries, with the exhibition running through March 2026, offering free public access to these remarkable scientific artworks. Among the standout contributions is a project by a seventh-grade student from Tianjin, who created a detailed specimen from a crucian carp rescued from a local vegetable market. This young participant’s work demonstrates how practical specimen preservation serves as both scientific practice and conservation advocacy.

Experts at the event emphasized the broader significance of specimen preservation, noting that each preserved specimen represents a conserved natural resource. The competition not only highlights technical excellence in taxidermy and preservation techniques but also fosters public awareness about biodiversity conservation and environmental stewardship.

The exhibition provides a unique platform for scientists, educators, students, and the general public to engage with natural history preservation. By bringing together works from professional institutions and amateur enthusiasts alike, the event bridges the gap between academic research and public education in the biological sciences.

A groundbreaking study from Chinese scientists has elucidated the critical role of urban surface heat sources in amplifying extreme heat phenomena within major metropolitan clusters. Researchers at the Northwest Institute of Eco-Environment and Resources (NIEER), operating under the Chinese Academy of Sciences, have systematically analyzed how urbanization patterns interact with atmospheric energy dynamics to exacerbate compound high-temperature events.

The investigation focused on China’s four primary urban agglomerations: the Beijing-Tianjin-Hebei region, Pearl River Delta, Yangtze River Delta, and Chengdu-Chongqing economic zone. Through comprehensive statistical analysis, the research team documented distinct seasonal and spatial patterns in surface heat distribution, revealing a consistent “strong in summer, weak in winter” cyclical pattern across all regions.

Notably, the study identified significant regional variations in heat distribution. The Beijing-Tianjin-Hebei region demonstrates stronger southern heat sources with northern areas occasionally transforming into thermal sinks during winter months. Conversely, the Yangtze River Delta exhibits concentrated heat sources along river networks, while major cities surprisingly manifest lower surface heat levels than surrounding areas.

Research lead Gao Xiaoqing emphasized that these thermal patterns result from complex interactions between topography, climatic conditions, and urbanization intensity. The findings demonstrate that while surface heat sources substantially influence the frequency of compound extreme heat events, their effect on event intensity remains comparatively limited.

Published in the prestigious journal Science China Earth Sciences, this research provides crucial insights for urban planning and climate resilience strategies. The identification of specific heat distribution mechanisms enables more targeted approaches to mitigating urban heat island effects and protecting public health during extreme temperature events.

China’s unprecedented transformation toward renewable energy has received prestigious international recognition, with leading scientific journals Science and Nature both highlighting the nation’s clean power transition as one of 2025’s most significant scientific milestones. According to their recent publications, China’s massive renewable expansion has effectively stalled the growth of greenhouse emissions domestically while accelerating the possibility of a global carbon peak.

Science magazine specifically designated China’s renewable energy surge as the 2025 Breakthrough of the Year, attributing this achievement to the country’s formidable industrial capacity. The journal reported that China currently manufactures 80% of global solar cells, 70% of wind turbines, and 70% of lithium batteries at unmatched competitive prices.

Supporting this assessment, Nature magazine featured China’s clean energy accomplishments among its ‘feel-good science stories to restore faith in 2025,’ noting that renewables have overtaken coal as the world’s primary energy source for the first time. This shift was propelled by China’s remarkable achievement of surpassing 1 terawatt of installed solar capacity in May 2025. During the first half of the year alone, China installed new solar systems with twice the capacity of the rest of the world combined.

The statistics demonstrate extraordinary growth: China’s wind and solar capacity exceeded thermal power for the first time in history by March, reaching 1.67 billion kilowatts by June—13.6% higher than thermal power capacity. Over the past five years, China has developed the world’s largest and fastest-growing renewable energy system, increasing renewables’ share in installed power capacity from approximately 40% to 60%.

Concurrently, China has implemented the world’s most extensive carbon market, regulating over 60% of national carbon dioxide emissions through effective permit systems. The country has also announced ambitious new Nationally Determined Contributions for 2035, including reducing economy-wide net greenhouse gas emissions by 7-10% from peak levels—marking China’s first absolute emissions reduction target covering all greenhouse gases across the entire economy.

Beyond domestic transformation, China’s renewable expansion has generated substantial global impact. According to National Energy Administration data, China’s wind and solar exports have helped avoid approximately 4.1 billion tonnes of global carbon emissions over five years. The country has collaborated with over 100 nations on green energy projects, reducing worldwide wind and photovoltaic power generation costs by 60% and 80% respectively. Since 2016, China has provided more than $25 billion in climate funding to developing countries.

As Science editors concluded: ‘China’s burgeoning exports of green tech are transforming the rest of the world too—producing clean energy technologies better, vastly cheaper, and in staggering quantities for global consumption.’