马斯克的“星链” 卫星大批坠落，SpaceX 商业版图受挫

Core Insights - SpaceX's Starlink satellites have experienced a significant increase in the number of satellites falling from orbit, with 583 satellites lost to date, approximately one in every fifteen satellites launched [1][3] - The increase in satellite falls is correlated with heightened solar activity, which affects atmospheric conditions and increases drag on low Earth orbit satellites [1] - Starlink aims to provide global high-speed internet access through a large constellation of satellites, with a manufacturing cost of $250,000 to $500,000 per satellite and launch costs of approximately $60 million per mission [2] Group 1 - The number of Starlink satellites that fell in 2021 surged to 78, with 99 in 2022 and 88 in 2023, while 316 satellites burned up in the atmosphere last year [1] - The current solar activity peak has led to increased atmospheric heating, causing the atmosphere to expand and increasing drag on satellites, resulting in more frequent falls [1] - Starlink's business model integrates satellite manufacturing, launching, and operational services, creating a comprehensive commercial ecosystem [2] Group 2 - Starlink satellites are designed for low orbits with an average lifespan of five years, and the user base is projected to exceed 5 million by 2025, covering various sectors including aviation and maritime [3] - The launch of direct mobile connectivity services in 2023 aims to expand Starlink's offerings, including SMS, voice calls, internet access, and IoT functionalities [3] - The increase in satellite falls contributes to space debris, posing risks to other spacecraft and requiring significant investment for satellite maintenance and replacement [3]