Core Viewpoint - The establishment of China's first interstellar flicker monitoring telescope, known as the "Grassland Eye," marks a significant advancement in the country's capabilities for ground-based observation of interstellar flickering, enhancing its position in global space weather research [1][3]. Group 1: Telescope Overview - The interstellar flicker monitoring telescope is a major piece of equipment under the national infrastructure project "Meridian Project Phase II," with its detection sensitivity at an internationally leading level [1][3]. - The telescope consists of a main station and two auxiliary stations, forming an equilateral triangle layout, with each station approximately 200 kilometers apart [2][3]. Group 2: Purpose and Functionality - The primary purpose of monitoring interstellar flickering is to conduct space weather research and disaster forecasting, as solar activities can lead to significant disturbances affecting Earth [3][5]. - The telescope can capture radio signals from cosmic sources that are disrupted by solar wind, allowing for the monitoring of solar storms and their potential impacts on satellites, communication, navigation, and power grids [5][6]. Group 3: Technical Innovations - The main station features three rows of parabolic antennas, each measuring 140 meters in length and 40 meters in width, making it the largest parabolic radio telescope in China [6][7]. - Key technological breakthroughs include high-precision synchronization control and a digital multi-beam receiving system, which have been fully domestically developed [6][7]. Group 4: Performance and Impact - The "Grassland Eye" can simultaneously receive signals from multiple directions, with a detection sensitivity capable of capturing cosmic radio signals weaker than mobile phone signals by a factor of 10 billion [6][7]. - Since its operation, the telescope has demonstrated exceptional performance, successfully recording significant solar storm events and contributing valuable data for space weather forecasting [7].

"这台望远镜是国家重大基础设施'子午工程二期'的重大设备之一，当地人称它为'草原天眼'，其探测灵 敏度处于国际领先水平。"刚到达观测站，行星际闪烁监测望远镜首席科学家、空间中心研究员颜毅华 就热情地介绍起来，它的建成标志着我国行星际闪烁地基观测能力跃居世界前列。 预警"太空炸弹" 广袤的草原上，微风拂过，草浪泛起翠玉般光泽。放眼望去，3排硕大的银白色钢架如同拔地而起的巨 人，静静伫立。"看，那些抛物柱面框架结构就是主望远镜了。"车上的工作人员指着远处的"巨人"告诉 科技日报记者。 前不久，跟随中国科学院国家空间科学中心（以下简称"空间中心"）科研人员，记者来到地处内蒙古锡 林郭勒盟的空间中心明安图野外科学观测研究站，探秘我国首台行星际闪烁监测望远镜。 "什么是行星际闪烁？"刚下车，记者就迫不及待地问颜毅华。 "所谓行星际闪烁，就是遥远的宇宙射电源发出的无线电信号，在穿过太阳系时，被不均匀的太阳风'搅 乱'了路径，导致地球上接收到的信号出现快速、不规则变化，就像星星在太空中眨眼睛。"颜毅华解释 道，"这类似于我们透过波动的空气看远处的灯光，会有忽明忽暗的感觉。" 说话间，记者随颜毅华来到控制室。在这里，工作人员 ...

Core Viewpoint - The recent issue of SpaceX's Starlink satellites experiencing significant falls has raised concerns about operational reliability and financial implications for the company [1][3]. Group 1: Satellite Failures - Since January, over 120 Starlink satellites have reportedly fallen, averaging about four per day, creating visible fireballs in the sky [1]. - The cost of manufacturing these satellites ranges from $300,000 to $500,000 each, leading to substantial financial losses for SpaceX given the number of satellites involved [3]. - The reasons for the satellite failures include both intentional deorbiting after mission completion and potential loss of control due to external factors [3][5]. Group 2: External Influences - The current peak of the 25th solar activity cycle is affecting satellite operations, with solar storms causing rapid deceleration and orbital deviations, leading to uncontrolled falls [5]. - Similar incidents occurred in 2022, where 40 Starlink satellites fell due to solar storm impacts, indicating a recurring issue [6]. Group 3: Mitigation Strategies - SpaceX's proactive approach to deorbiting aging satellites is commendable as it helps reduce space debris, which has been increasing in recent years [8]. - The company must ensure that deorbiting occurs in safe locations to prevent potential hazards from falling debris, especially in populated or sensitive areas [8]. Group 4: Future Considerations - SpaceX needs to conduct a comprehensive evaluation and improvement of the Starlink program, focusing on enhancing satellite resilience against natural disturbances [10]. - There is a broader need for all countries involved in satellite operations to address interference and collision risks to ensure the sustainable development of space as a shared domain [10].