Group 1 - The article commemorates the life and contributions of Nan Rendong, known as the father of the "Chinese Sky Eye" [1][27] - It highlights his early years at Tsinghua University, where he excelled academically and was a respected class leader [3][7] - Nan Rendong's passion for exploration and knowledge is emphasized, showcasing his dedication to learning and his diverse talents in arts and sports [10][11][16] Group 2 - The article details Nan Rendong's professional journey, including his significant role in developing China's first semiconductor radio and television transmitter [20] - It describes the ambitious project of building the world's largest radio telescope, the Five-hundred-meter Aperture Spherical Telescope (FAST), which took 22 years to complete [22][29] - The article notes that FAST made its first significant discovery shortly after Nan Rendong's passing, capturing signals from pulsars, marking a milestone in astronomical research [29][31] Group 3 - The legacy of Nan Rendong is further immortalized with the naming of an asteroid after him and the inclusion of his story in educational materials [31][34] - The article concludes with a reflection on his enduring impact on science and the continued exploration of the universe through the FAST telescope [33][34]

Core Viewpoint - The inclusion of the text "A Star Named Nan Rendong" in the 2025 junior high school Chinese textbook serves as a tribute to the renowned Chinese astronomer Nan Rendong and aims to pass on the spirit of scientific perseverance and innovation [1][12]. Group 1: Background of Nan Rendong and FAST - Nan Rendong was a prominent Chinese astronomer and the chief scientist and chief engineer of the "China Sky Eye" (FAST) project [3]. - The idea to build a large radio telescope in China emerged in the 1990s when Nan Rendong visited the Arecibo Observatory in the United States [3]. - In 1994, he proposed the construction of a 500-meter aperture spherical radio telescope in Guizhou, named "FAST," symbolizing the pursuit of excellence [5]. Group 2: Challenges and Achievements - Nan Rendong faced skepticism from experts regarding the feasibility of the project, which involved significant technical and engineering challenges [6]. - He dedicated over a decade to site selection, ultimately choosing the most suitable location from nearly 400 candidates [7]. - The FAST project was officially approved as a major scientific facility in 2007, with construction beginning in 2011 after the relocation of local residents [7]. Group 3: Personal Sacrifices and Legacy - Nan Rendong devoted nearly one-third of his life to the FAST project, returning to the construction site shortly after undergoing surgery for late-stage lung cancer [9]. - He emphasized the collective effort behind the project, stating that it was a culmination of teamwork and perseverance rather than individual achievement [11]. - The FAST telescope was completed in 2016, marking a significant milestone in China's scientific capabilities [11]. - Nan Rendong passed away in September 2017, leaving behind a legacy of dedication and a vision for future generations [12].

Group 1 - The launch of the third-generation autonomous superconducting quantum computer "Benyuan Wukong" and the successful return of samples from the "Chang'e 6" mission highlight China's advancements in technology and innovation [1][4] - The "14th Five-Year Plan" emphasizes the importance of innovation, aiming to build a technology powerhouse with leading global scientific strength and innovation capabilities [4][12] - Significant breakthroughs in foundational research have been achieved, including the detection of the first continuously active repeating fast radio bursts and advancements in quantum technology [5][6] Group 2 - The "Deep Sea No. 1" project, the world's first deep-water gas field developed independently, has begun full production, marking a significant milestone in China's deep-sea oil and gas development [2][8] - The launch of the first domestically produced large cruise ship "Aida·Modu" and the ongoing construction of the second ship "Aida·Huacheng" reflect advancements in China's shipbuilding industry [10] - The high-speed rail technology continues to innovate, with the CR450 train showcasing China's leadership in global high-speed rail operations [9] Group 3 - The rapid development of the new energy vehicle industry, which has maintained the highest global production and sales, demonstrates China's progress in automotive technology [11] - The establishment of the world's largest and most advanced 5G network has facilitated the digital transformation across various industries [11] - China's investment in research and development has reached new heights, with a nearly 50% increase in R&D funding compared to the end of the "13th Five-Year Plan" [12]

Group 1 - The FAST (Five-hundred-meter Aperture Spherical Telescope) is the world's largest and most sensitive single-dish radio telescope, operating nearly 24 hours a day and providing over 5,300 hours of observational data annually [1][5] - The team is currently working on the construction of a core array around FAST, aiming to establish a comprehensive aperture array consisting of dozens of 40-meter diameter antennas by 2030 to enhance FAST's performance [1][9] - The rigorous work ethic and responsibility of the team have allowed FAST to complete its debugging phase in less than two years, significantly shorter than similar international telescopes [3][4] Group 2 - The operational reliability of FAST is crucial, as equipment failure directly impacts its performance, with a reported observation time approval rate of only 20% [5] - FAST has discovered over 1,040 pulsars, surpassing the total number discovered by other telescopes during the same period, and has conducted significant research in various fields, including neutral hydrogen surveys and gravitational wave detection [5] - The legacy of former chief scientist Nan Rendong continues to inspire the team, emphasizing the importance of innovation and excellence in maintaining FAST's leading position in radio astronomy [6][8] Group 3 - The international landscape of radio astronomy is evolving, with new projects like the Square Kilometer Array (SKA) and the next-generation Very Large Array (ngVLA) set to challenge FAST's performance by 2029 and 2035 respectively [8][9] - The mixed aperture array concept for FAST is being developed to ensure it remains at the forefront of radio astronomy, with initial prototypes already constructed and key technologies being tested [9]

Core Viewpoint - China emphasizes open scientific cooperation to benefit humanity, establishing partnerships with over 160 countries and regions, and signing 119 intergovernmental agreements on scientific collaboration [2][5]. Group 1: International Cooperation Platforms - The SKA project, known as the "Earth's Giant Eye," is being developed with support from China and over ten other countries, aiming to create the world's largest radio telescope [3]. - China plays a significant role in the SKA project, contributing to key technology development and infrastructure construction [3]. - The FAST telescope, known as "China's Eye," has an open data sharing platform that serves users from dozens of countries, showcasing international collaboration in scientific research [3]. Group 2: Equal International Dialogue - Chinese and German academic institutions have innovated cooperation models, fostering a new generation of young academic leaders through various collaborative initiatives [6]. - The "Tengchong Scientist Forum" in Yunnan has become a platform for advanced academic exchanges and international cooperation in science and technology [7]. Group 3: Effective Innovation Networks - China has established over 70 "Belt and Road" joint laboratories in various fields, enhancing international scientific collaboration [8]. - The "China-Uruguay Joint Laboratory" focuses on soybean genetics research and aims to become an international scientific innovation platform [9]. Group 4: Nurturing a Cooperative Ecosystem - The "Xishuangbanna Biodiversity Platform" was launched to provide a new window for exploring tropical biodiversity, showcasing collaborative efforts in ecological research [11]. - The Chinese government is committed to creating a conducive environment for scientific innovation and cooperation, focusing on practical and efficient funding mechanisms [12].

Core Findings - A rare millisecond pulsar has been discovered based on observations from the "Chinese Sky Eye" (FAST), which orbits a companion star every 3.6 hours, with periodic eclipses lasting 0.6 hours [1][2] - This discovery is significant for understanding stellar evolution theories, compact star accretion physics, and gravitational wave generation mechanisms [1] Group 1: Discovery Details - The discovered pulsar, PSR J1928+1815, has a rotation period of 10.55 milliseconds and was confirmed to have a companion star after six months of tracking [1] - The companion star is unusually massive, comparable to the Sun, but has a very small orbit of only 500,000 kilometers, which is not typical for eclipsing pulsar companions [2] Group 2: Scientific Implications - The findings validate the theory of common envelope evolution in binary star systems, enhancing the understanding of how stars interact and exchange material [2] - The companion star may have accumulated significant material during the common envelope phase, providing insights into neutrino cooling mechanisms [2] - This unique binary system could eventually evolve into a source of gravitational waves, offering new clues for studying gravitational wave generation [2]

Core Viewpoint - The article highlights the celebration of International Labor Day by the Chinese Academy of Sciences, recognizing outstanding individuals and teams for their contributions to scientific research and innovation, particularly in addressing significant national and global challenges [1][2]. Group 1: Recognition of Individuals and Teams - Six individuals and thirteen teams were awarded the title of "Koyuan Craftsman," including notable contributions such as the development of a "Chinese solution" for red tide management by researcher Yu Zhiming and the successful construction and operation of the "Chinese Sky Eye" (FAST) telescope [1][2]. - Professor Jiang Jun from the University of Science and Technology of China has developed a machine scientist platform that integrates artificial intelligence and big data, significantly enhancing research efficiency in various fields [2]. - Yu Zhiming's innovative approach to red tide management has been recognized internationally and is now part of emergency response plans in 13 coastal provinces in China, effectively mitigating economic and social losses caused by red tides [2]. Group 2: Technological Innovations and Research Contributions - The LEAF team at the Institute of Modern Physics focuses on producing and precisely controlling low-energy high-charge heavy ion beams, providing advanced experimental conditions for nuclear astrophysics and new nuclear material research [3]. - The salt-alkali land improvement team from the Institute of Genetics and Developmental Biology has developed key technologies for breeding salt-tolerant forage and biological improvement of saline-alkali land, addressing food security and resource utilization in northern China [3]. - The "Chinese Sky Eye" (FAST) telescope has set new standards in radio astronomy, having discovered over 1,040 pulsars, surpassing the total number discovered by other international telescopes during the same period [4].