分类: science

  • China to accelerate lunar mission plans this year

    China to accelerate lunar mission plans this year

    China has officially intensified its lunar exploration timeline, announcing a major acceleration in infrastructure development critical to its ambitious manned moon mission program. The China Manned Space Agency confirmed on Friday that 2026 will witness a full-throttle push to complete essential facilities at the Wenchang Space Launch Center in Hainan province.

    The comprehensive development encompasses not only launch infrastructure but also sophisticated ground support systems including advanced telemetry, tracking networks, command centers, communications technology, and landing site preparations. This infrastructure surge supports the concurrent development of the program’s flagship vehicles: the Long March 10 heavy-lift carrier rocket, the Mengzhou crew spacecraft, and the Lanyue lunar lander.

    Technical milestones already achieved include successful pad abort and maximum dynamic pressure escape tests for the Mengzhou spacecraft, along with comprehensive landing and takeoff demonstrations for the Lanyue lander. The Long March 10 rocket has completed critical static ignition and low-altitude flight tests, demonstrating substantial progress toward operational readiness.

    The mission architecture involves a sophisticated orbital dance: two separate Long March 10 launches will deliver the Lanyue lander and Mengzhou spacecraft to lunar orbit. After achieving orbital synchronization, the vehicles will dock, allowing two astronauts to transfer to the lander for descent to the lunar surface. Surface operations will utilize the Tansuo rover for scientific exploration and sample collection before the crew returns to the orbiting spacecraft for Earth return.

    In a parallel development, the agency revealed that astronauts selected from Hong Kong and Macao special administrative regions will likely undertake their inaugural spaceflights this year. This historic inclusion follows China’s June 2024 selection of its fourth astronaut cohort, which for the first time included payload specialists from these regions. The 2026 schedule also includes two manned spaceflights and one cargo mission to the Tiangong space station, underscoring China’s broad commitment to space exploration.

  • Nasa announces change to its Moon landing plans

    Nasa announces change to its Moon landing plans

    NASA has announced a strategic revision to its Artemis program, introducing an additional mission phase to enhance safety and technical preparedness before attempting the first human lunar landing in over five decades. The updated roadmap now includes Artemis III as a low-Earth orbit (LEO) docking exercise scheduled for 2027, marking a significant departure from the original plan that envisioned this mission as a direct lunar landing attempt.

    Under the restructured timeline, Artemis II remains on schedule for an April launch, carrying four astronauts on a circumlunar voyage around the Moon’s far side. However, this mission has experienced technical setbacks due to a helium leak detected on the Space Launch System (SLS) rocket, necessitating repairs at Kennedy Space Center’s Vehicle Assembly Building. The earliest launch window has consequently shifted to April, pending completion of necessary repairs.

    NASA Administrator Jared Isaacman justified the program restructuring by emphasizing risk mitigation. “The current architecture was not a pathway to success,” Isaacman stated during a media briefing. “Conducting integrated systems testing of the Orion capsule and lunar lander in low-Earth orbit provides invaluable operational experience before committing to lunar surface operations.”

    The revised approach addresses critical program gaps, particularly the delayed development of the human-rated lunar lander. While SpaceX holds the current contract for lander development using its Starship platform, NASA has concurrently engaged Blue Origin to develop an accelerated alternative solution. The Artemis III LEO mission could potentially test docking procedures with either or both lander prototypes.

    This strategic pivot occurs against the backdrop of intensifying international space competition, with China targeting a crewed lunar landing by 2030. Both nations are focusing on the Moon’s south pole region, establishing what amounts to a modern space race for strategic lunar positioning and resource access.

    Despite these changes, NASA maintains its commitment to achieving one or even two lunar landings by 2028 through subsequent Artemis IV and V missions, demonstrating the program’s adaptive planning while preserving its overarching objectives of sustainable lunar exploration.

  • A total lunar eclipse will turn the moon blood red on Tuesday across several continents

    A total lunar eclipse will turn the moon blood red on Tuesday across several continents

    Skywatchers across the Americas and Pacific regions are preparing for a remarkable astronomical event as the last total lunar eclipse until 2028 prepares to illuminate night skies with its characteristic crimson glow. This extraordinary celestial phenomenon will be fully visible during morning hours throughout North America, Central America, and western South America on Tuesday, while observers in Australia and eastern Asia will witness the spectacle during evening hours.

    The cosmic alignment occurs when Earth positions itself directly between the sun and full moon, casting our planet’s shadow across the lunar surface. The resulting ‘blood moon’ effect emerges from sunlight filtering through Earth’s atmosphere, scattering blue light while allowing red wavelengths to illuminate the moon’s surface. This atmospheric filtering creates the stunning reddish-orange appearance that gives the phenomenon its dramatic name.

    Astronomers note that the event will unfold gradually over several hours, with the period of totality—when the moon is completely within Earth’s shadow—lasting approximately one hour. Unlike solar eclipses requiring protective eyewear, lunar eclipses present no viewing hazards, allowing observers to enjoy the spectacle with unaided vision under clear sky conditions.

    This eclipse continues a pattern of celestial events, occurring just two weeks after an annular ‘ring of fire’ solar eclipse captivated viewers in Antarctica. According to NASA’s eclipse patterns, between four and seven eclipses typically occur annually, often clustering together due to orbital alignments. Another partial lunar eclipse is scheduled for August, with visibility spanning the Americas, Europe, Africa, and western Asia.

    Astronomer Bennett Maruca of the University of Delaware recommends checking local timing through forecasting applications or online celestial calendars, noting that observers need not watch continuously to appreciate the moon’s gradual transformation as Earth’s shadow creates a dramatic celestial display.

  • Chinese scientists discover new mechanism to boost cold resilience, nutrient use in maize

    Chinese scientists discover new mechanism to boost cold resilience, nutrient use in maize

    Researchers at China Agricultural University have made a groundbreaking discovery that resolves a fundamental agricultural dilemma: how to maintain crop productivity in cold environments where plants typically struggle with both temperature stress and nutrient deficiency. Published in the prestigious journal Nature, their study reveals a sophisticated molecular mechanism that naturally creates a biological trade-off between cold resilience and phosphate absorption in maize.

    The research team, working from the State Key Laboratory of Plant Environmental Resilience, identified NLA—a crucial E3 ubiquitin ligase that functions as a central regulatory hub governing how maize plants respond to cold conditions while simultaneously managing phosphate uptake. Professor Yang Shuhua, co-corresponding author of the study, explained that this mechanism operates like a biological ‘seesaw,’ where enhanced cold tolerance comes at the direct expense of phosphate absorption capability.

    Leveraging cutting-edge biotechnology, the scientists employed AI-assisted protein design and precision gene-editing techniques to reengineer the NLA protein. This innovative approach allowed them to bypass nature’s compromise, resulting in a novel maize variant that demonstrates exceptional performance in both cold resistance and phosphate utilization efficiency.

    The implications extend far beyond maize cultivation. Nature’s accompanying commentary highlighted how this methodology could revolutionize sustainable agriculture by potentially applying similar protein-rewiring techniques to optimize other essential nutrient pathways, including nitrogen utilization. This breakthrough arrives at a critical juncture in global agriculture, offering promising solutions for developing climate-resilient crops capable of thriving amid increasingly unpredictable environmental conditions driven by climate change.

  • Ancient lizard with bone cancer found preserved in amber: study

    Ancient lizard with bone cancer found preserved in amber: study

    An international team of paleontologists has made a groundbreaking discovery by identifying the oldest-known case of a bone tumor in a vertebrate, preserved for 99 million years in amber. The remarkable finding, led by Professor Xing Lida from China University of Geosciences (Beijing) with collaborators from the United States and Canada, was published Wednesday in the scientific journal Palaeoentomology.

    The specimen, originating from a Cretaceous-period mine in Myanmar’s Kachin State, represents a partial lizard skeleton from the Anguimorpha suborder that once inhabited a tropical forest ecosystem. Researchers initially noticed an abnormality in the creature’s toe, which upon high-resolution examination revealed irregular erosion patterns on the fourth digit’s first phalanx and adjacent joint surface.

    Employing advanced micro-computed tomography (micro-CT) technology, the team generated detailed three-dimensional reconstructions of the fossilized bone through the amber casing. The scans unveiled a distinct geographic lesion featuring expanded bone tissue with multiple small, cyst-like cavities—characteristics consistent with destructive non-sclerotic processes.

    Through comprehensive differential diagnosis comparing over 30 pathological conditions including fractures, infections, and various tumor types, the researchers concluded the lizard suffered from a giant cell tumor (GCT). This type of bone neoplasm commonly occurs near joints in modern animals, including mammals. While tumors have been previously documented in dinosaur skeletons, this represents the first verification in an amber-preserved vertebrate.

    The discovery provides unprecedented insights into evolutionary medicine, demonstrating that this specific cancer pathology has remained virtually unchanged for nearly 100 million years. Professor Xing emphasized the significance: ‘Every piece of amber serves as a time capsule of Earth’s history, with disease traces offering unique footnotes in the story of evolution. This glimpse into a lizard’s health from 100 million years ago opens new windows for understanding life’s evolutionary journey.’

    The finding fills critical gaps in paleopathological studies and offers direct evidence for comprehending disease prevalence and progression in ancient animal species.

  • Shell waste technology reaps rewards for Zhanjiang

    Shell waste technology reaps rewards for Zhanjiang

    Researchers from Lingnan Normal University in Zhanjiang, Guangdong province, have pioneered an innovative biotechnology that converts discarded shrimp and crab shells into high-value materials with significant applications in food preservation and aquaculture sustainability. Led by Professor Liu Kaidong and Liang Fengyan from the School of Life Science and Technology, the team has developed advanced chitosan extraction and modification techniques that address both environmental concerns and economic opportunities.

    The technology centers on extracting chitin from seafood waste and transforming it into chitosan through deacetylation processes. This natural polysaccharide possesses remarkable antibacterial properties and complete biodegradability. Through functional modification and forming processing techniques including dip-coating/spray-coating film formation, ionic-covalent cross-linking, and microencapsulation, the researchers have created multifunctional materials that leverage chitosan’s inherent film-forming capabilities combined with natural plant extracts.

    In agricultural applications, the chitosan-based preservation systems extend fruit and vegetable shelf life by 200-300%, significantly reducing post-harvest losses. Specific results include extending lychee’s ambient freshness to 6-8 days and reducing papaya decay rates below 5%. Compared to traditional chemical preservatives, this approach offers superior safety and environmental compatibility while enabling price premiums of 10-20% for quality produce.

    Aquaculture applications demonstrate even more dramatic impacts, with pathogen inhibition exceeding 90% against organisms like Vibrio parahaemolyticus. The technology reduces vibriosis incidence below 5% while increasing survival rates by 15-25% across crustaceans, fish, and shellfish. Implementation methods include water dispersion and feed supplementation, though careful concentration management is required for delicate species like sea cucumber and abalone fry.

    The economic implications for Zhanjiang—China’s renowned ‘seafood capital’—are substantial. Annual projections indicate reduction of fruit and vegetable losses by 300,000-750,000 metric tons, generating additional revenue of 600 million to 1.5 billion yuan. Shrimp production could increase by 80,000-240,000 tons annually with comprehensive direct benefits reaching 3-8.5 billion yuan while reducing cultivation costs by 500-1,000 yuan per mu.

    This technological breakthrough addresses critical environmental challenges posed by marine solid waste while creating substantial economic value. The research team continues to promote integration between scientific advancement and local industrial development, driving sustainable growth in the marine economy through innovative green technologies.

  • China’s science museums draw 3.5m visitors over Spring Festival holiday

    China’s science museums draw 3.5m visitors over Spring Festival holiday

    China’s network of science museums experienced unprecedented visitor engagement during the recent Spring Festival holiday, drawing approximately 3.5 million attendees through innovative programs merging cultural traditions with technological innovation. The nationwide initiative featured specially curated activities that combined lunar new year celebrations with scientific exploration, creating unique educational experiences across the country.

    The China Science and Technology Museum in Beijing served as the flagship institution, launching four major thematic sections alongside a specialized exhibition exploring the intersection of equine biology and cultural significance. This exclusive display attracted over 200,000 visitors during the holiday period. In a significant boost to national science education, the museum’s digital resources were made freely available throughout the country, with 37 regional science institutions applying to host the traveling exhibition—a strategic move that substantially enhanced exhibition capabilities at grassroots levels.

    Regional museums demonstrated remarkable creativity in developing location-specific programming. Hebei Province’s institutions integrated traditional Wuqiang New Year paintings with interactive scientific demonstrations, while Heilongjiang’s museums created immersive environments where visitors could examine the scientific properties of ice and snow alongside cultural displays about zodiac traditions.

    Fujian Province emerged as a particular success story, with 54 participating venues collaborating on distinctive programming that included synchronized performances between AI robotic dogs and traditional shuttlecock kickers. Additional attractions featured mixed reality dinosaur exhibitions and narrative-driven tour games, collectively drawing more than 350,000 participants. This coordinated effort across China’s science museum network represents a significant advancement in public science engagement during traditional cultural celebrations.

  • Rare yellow orchid mantis photographed in Yunnan

    Rare yellow orchid mantis photographed in Yunnan

    In a remarkable display of biodiversity, researchers have documented the presence of an exceptionally rare yellow orchid mantis within the lush Wangtianshu scenic area of Mengla county, Yunnan province. The sighting represents a significant ecological milestone for the region, which has implemented extensive conservation measures in recent years.

    The vibrant insect, scientifically known as Hymenopus coronatus, demonstrates one of nature’s most sophisticated camouflage adaptations. Unlike its more common pink-hued counterparts, this particular specimen exhibits a striking yellow pigmentation, enabling it to blend seamlessly with yellow orchids and other tropical flora. This chromatic variation provides both protective concealment from predators and enhanced hunting capabilities.

    Photographer Gan Si captured the mantis during its foraging activities, creating a visual record of this elusive arthropod. The specimen’s excellent physical condition and natural behavior suggest a thriving population within Yunnan’s protected ecosystems. Entomologists believe the sighting indicates successful environmental preservation efforts, as orchid mantises require specific microhabitats with minimal human disturbance.

    Yunnan province, recognized as China’s most biologically diverse region, contains approximately 18,000 plant species and 1,800 vertebrate species. The discovery adds to the growing evidence of ecological recovery in areas previously affected by deforestation and agricultural expansion. Conservation authorities have noted increased sightings of rare species throughout Yunnan’s nature reserves, suggesting broader positive trends in regional biodiversity.

    Researchers emphasize that continued monitoring and habitat protection will be crucial for maintaining these positive developments. The orchid mantis discovery not only provides valuable scientific data but also demonstrates how concerted conservation efforts can yield tangible results in species preservation and ecosystem restoration.

  • Patterns on mammoth tusks help to retell history of writing

    Patterns on mammoth tusks help to retell history of writing

    A groundbreaking archaeological discovery in southern Germany is fundamentally reshaping our understanding of human communication’s origins. Researchers have uncovered compelling evidence that symbolic writing systems emerged approximately 40,000 years earlier than previously documented, challenging conventional historical timelines.

    Analysis of Paleolithic artifacts from German cave systems, particularly the extensive Lonetal network in Baden-Württemberg, reveals sophisticated symbolic patterns carved onto mammoth ivory figurines and other objects. These intricate markings—comprising carefully arranged rows of crosses, dots, and notches—demonstrate statistical complexity comparable to later proto-cuneiform scripts from ancient Mesopotamia.

    The research team, including Professor Christian Bentz from Saarland University and Dr. Ewa Dutkiewicz from Berlin’s Museum of Prehistory and Early History, examined over 3,000 characters across 260 artifacts dating back 45,000 years. Their investigation focused on objects created just as Homo sapiens migrated from Africa into Europe, potentially interacting with Neanderthal populations.

    Notable among the findings is a meticulously carved mammoth figurine featuring engraved rows of crosses and dots, and an ‘adorant’ artifact from Geißenklösterle cave depicting a lion-human hybrid with systematic dot and notch patterns. The researchers observed that symbolic density was particularly pronounced on figurative objects rather than utilitarian tools, suggesting ritual or communicative purposes beyond mere decoration.

    Statistical analysis revealed these Paleolithic symbol sequences possessed information density remarkably similar to Mesopotamian proto-cuneiform tablets created 40,000 years later. The patterns demonstrate predictable sequencing and repetitive structures that researchers interpret as deliberate communication attempts by highly skilled craftspeople.

    This discovery positions Stone Age humans as cognitive equals to modern humans, capable of developing complex symbolic systems tens of thousands of years before writing was traditionally believed to have emerged in ancient Iraq. While the precise meaning of these symbols remains undeciphered, their systematic arrangement suggests they represent an early alternative to writing rather than arbitrary decorations.

    The research, published in the prestigious journal PNAS, indicates that current understanding of prehistoric symbolic communication represents merely ‘scratching the surface’ of what might be discovered through continued analysis of Paleolithic artifacts across Europe and beyond.

  • Chinese researchers develop AI model to process stellar data from different telescopes

    Chinese researchers develop AI model to process stellar data from different telescopes

    Chinese astronomers have achieved a groundbreaking advancement in cosmic data interpretation through the development of SpecCLIP, an innovative artificial intelligence model capable of processing and harmonizing stellar spectral data from disparate telescope systems. This technological breakthrough, spearheaded by researchers from the National Astronomical Observatories of the Chinese Academy of Sciences and the University of Chinese Academy of Sciences, addresses a fundamental challenge in modern astronomy: the inability to directly compare spectral information collected through different methodologies, resolutions, and wavelength ranges.

    The newly created AI framework functions as an astronomical translator, converting varied spectral data from instruments such as China’s LAMOST and Europe’s Gaia satellite into a universal language format. By employing contrastive learning techniques similar to those used in large language models, SpecCLIP autonomously establishes intrinsic connections between datasets that were previously incompatible. This capability allows astronomers to perform comprehensive joint analyses across different survey projects without the limitations of instrumental variations.

    According to research published in the Astrophysical Journal, SpecCLIP represents more than a specialized tool—it approaches the functionality of a foundational model with multiple applications. The system can simultaneously predict stellar atmospheric parameters and elemental abundances, conduct spectral similarity searches, and identify unusual celestial objects that might otherwise remain undetected in massive datasets.

    This innovation holds particular significance for Galactic archaeology, where it promises to accelerate the discovery of extremely rare, metal-poor ancient stars that contain crucial information about the Milky Way’s formation and evolutionary history. The model has already demonstrated practical utility in ongoing scientific missions, including the characterization of planet-hosting stars and improving efficiency in the search for potentially habitable exoplanets.