工程如何既实现科学目标又平衡技术、进度和成本？新建天线如何避免对台址既有设备造成干扰？建设过程中怎样最大限度保护当地野生动 植物？……千头万绪，样样不能马虎。 天线结构设计师出身的张磊，如今化身为项目现场的"大管家"，每天穿梭于超过100公里范围的多个台站，组织协调各站点分工并行作业，忙 得脚不沾地。 新华社北京2月21日电 题：跨越半球的坚守，他们奔赴一场"宇宙之约" 新华社记者温竞华 "今天的任务依然排得满满当当。"大年初三，北京时间午后1点，当记者拨通平方公里阵列射电望远镜（SKA）中频天线现场项目领队张磊的 视频电话时，他已抵达建设站址，准备开始一天的工作。 镜头那边，早晨7点的南非卡鲁荒漠，湛蓝的天空下，一台台高耸的白色六边形碟状天线正缓缓转动，向宇宙发出无声的问候。 位于南非卡鲁地区的SKA中频天线。（受访者供图） 让张磊和团队成员春节坚守的"他乡之约"，正是SKA的重要组成部分——位于南非卡鲁地区的这片中频阵列。SKA作为由全球多国共同建造 运行的国际大科学计划，将建造世界最大综合孔径射电望远镜，接收总面积约1平方公里，助力人类探索宇宙之谜。 作为SKA创始成员国之一，中国以实物形式贡献64台中 ...

"今天的任务依然排得满满当当。"大年初三，北京时间午后1点，当记者拨通平方公里阵列射电望远镜 （SKA）中频天线现场项目领队张磊的视频电话时，他已抵达建设站址，准备开始一天的工作。 镜头那边，早晨7点的南非卡鲁荒漠，湛蓝的天空下，一台台高耸的白色六边形碟状天线正缓缓转动， 向宇宙发出无声的问候。 位于南非 卡鲁地区的SKA中频天线。（受访者供图） 让张磊和团队成员春节坚守的"他乡之约"，正是SKA的重要组成部分——位于南非卡鲁地区的这片中频 阵列。SKA作为由全球多国共同建造运行的国际大科学计划，将建造世界最大综合孔径射电望远镜，接 收总面积约1平方公里，助力人类探索宇宙之谜。 作为SKA创始成员国之一，中国以实物形式贡献64台中频天线结构，这些天线由张磊所在的中国电科网 络通信研究院负责研制、生产与建设。2026年，项目进入南非现场快速建设阶段，预计年内完成28台天 线的阶段性建设目标。 工程如何既实现科学目标又平衡技术、进度和成本？新建天线如何避免对台址既有设备造成干扰？建设 过程中怎样最大限度保护当地野生动植物？……千头万绪，样样不能马虎。 张磊（右）在SKA中频天线建设现场工作。（受访者供图） 耿旭光 ...

Core Insights - The exploration of finding a "second Earth" represents a grand vision for humanity, providing vast opportunities and challenges for the aerospace industry [2] - The company is committed to enhancing its core technologies and improving the performance and reliability of existing products [2] - The company will also explore the research and innovation of related frontier technologies to ensure adequate technical and product reserves for aerospace missions [2]

Core Insights - The article discusses the current state of astronomy and its impact on human life, highlighting the importance of exploring the universe and understanding its mysteries [1][7]. Group 1: Historical Context and Development - China is one of the earliest and fastest-developing countries in astronomy, with significant contributions to ancient natural sciences and astronomical observations dating back to the 21st century BC [2]. - The invention of the telescope by Galileo in 1610 marked a revolutionary moment in astronomy, leading to significant advancements in human understanding of the universe over the past 400 years [2][3]. Group 2: Breakthroughs in Astronomy - The 21st century has seen a surge in revolutionary discoveries in astronomy, providing new perspectives on the formation and evolution of celestial bodies and the laws of the universe [3][4]. - Major breakthroughs include advancements in understanding dark matter and dark energy, as well as the detection of gravitational waves, which have spurred the development of high-tech innovations [3][4]. Group 3: China's Contributions and Technological Advancements - China's astronomical research has made significant strides, with world-class research teams and leading technologies, exemplified by projects like the Guo Shoujing Telescope and the "Chinese Sky Eye" [4][5]. - The country has established a strong foundation in various fields of astronomy, contributing to significant advancements in cosmology, galaxy studies, and lunar exploration [4][5]. Group 4: Future Directions and Strategic Goals - The National Space Science Medium- and Long-term Development Plan (2024-2050) outlines strategic goals for China's exploration of the universe, focusing on five major scientific themes and 17 priority development directions [6]. - The exploration of the universe is seen as a vital pathway for understanding the world and driving advancements in high-tech fields, with implications for national strength and global cooperation [6][7]. Group 5: Significance of Space Exploration - Exploring the universe is crucial for discovering new resources, expanding human living space, and addressing environmental challenges on Earth [7]. - The endeavor fosters international collaboration and enhances national competitiveness, while also deepening humanity's understanding of its own existence and the cosmos [7].

Group 1: Development of Astronomy - Astronomy is one of the earliest and fastest-developing natural sciences in China, with significant historical contributions to global astronomy [2] - The invention of the telescope by Galileo in 1610 marked a revolutionary advancement in astronomy, leading to a new era of exploration [2] - The continuous technological breakthroughs in telescopes over the past 400 years have resulted in major discoveries and advancements in human understanding of the universe [2][3] Group 2: Breakthroughs in Contemporary Astronomy - The 21st century has seen significant revolutionary achievements in astronomy, marking a golden age of rapid development and breakthroughs [3] - Current astronomical research focuses on stars, black holes, galaxies, and the large-scale structure of the universe, enhancing understanding of cosmic laws [3] - The detection of gravitational waves has led to advancements in high-tech applications, pushing the boundaries of quantum precision measurement [3] Group 3: China's Advancements in Astronomy - China's astronomical research and technology have made significant progress, establishing world-class research teams and leading technological capabilities [4] - Major scientific projects like the Guo Shoujing Telescope and the "Chinese Sky Eye" have gained international attention, contributing to fields such as gravitational wave detection and lunar exploration [4] - China's astronomy research plays a crucial role in national needs, supporting areas like lunar and deep space exploration, satellite precision tracking, and space weather monitoring [4] Group 4: Future Directions in Space Exploration - The National Space Science Medium- and Long-term Development Plan (2024-2050) outlines strategic goals for China's space exploration, focusing on five major scientific themes [5] - Space exploration is a vital pathway for understanding the objective world and serves as a source for high-tech advancements, driving developments in various technological fields [5] - Recent achievements in astronomy and space technology have showcased China's scientific strength and sparked public interest in cosmic exploration [5] Group 5: Significance of Space Exploration - Space exploration is crucial for discovering new resources, supporting economic development, and expanding human living space in response to environmental challenges [6] - It fosters international cooperation and advances scientific and technological progress, potentially revealing the nature of dark matter, dark energy, and black holes [6] - The exploration of the universe symbolizes national strength and enhances competitiveness, while also prompting reflections on humanity's destiny [6]