报道称，五角大楼已对可供商业用途租赁的区域进行了初步调查，但官员们并未透露五角大楼正在考虑的租赁面积和租赁期限。官员们表示，将被出租的很 可能是基地周围的多个地块，而不是一个大地块，五角大楼目前正着重考虑海军陆战队很少使用的区域。一名现任国防官员表示，美国海军部长约翰·费伦 上周参观了彭德尔顿海军陆战队基地，并乘坐直升机视察了正在考虑对外出租的区域。 报道还称，目前尚不清楚五角大楼计划将哪些公司或部门作为潜在承租人，以及希望筹集多少资金。但官员们说，失去这片土地不会影响海军陆战队的训练 或战备状态。 特朗普5月发布"金穹"天基导弹防御系统发展规划，称该系统将与美国现有的导弹防御能力整合，计划在2028年内实现"全面运转"。一旦完全建成，将能够 拦截从世界其他地方甚至太空发射的导弹，整个系统将耗资约1750亿美元。众多美国媒体和专家质疑，"金穹"计划在技术研发和资金安排上都面临严峻挑 战，特朗普设定的时间表则进一步增加了项目的实施难度。 NBC介绍称，彭德尔顿海军陆战队基地位于南加州，距离圣地亚哥约40英里（约64千米），占地面积超过12.5万英亩（约5.06公顷），其中不到四分之一的 区域已建设完成，是美国海 ...

Core Points - The "Iron Dome" space-based missile defense system, known as "金穹," consists of a four-layer defense architecture, including one space-based layer and three land-based layers, with 11 short-range missile launchers distributed across the U.S., Alaska, and Hawaii [1][3] - The system is projected to cost approximately $175 billion and aims to achieve full operational capability by 2028, integrating with existing U.S. missile defense capabilities [3] - The project faces significant technical challenges and funding issues, with experts expressing concerns about its offensive nature and potential violations of the Outer Space Treaty [3][4] Defense System Structure - The "金穹" system includes a space-based sensor and targeting layer for missile warning and tracking, along with three land-based layers featuring interceptors, radar arrays, and possibly laser weapons [3] - A new large missile launch site is planned in the Midwest to deploy next-generation interceptors, complementing existing systems like THAAD and Aegis [4] Technical Challenges - The system will encounter technical difficulties, particularly regarding communication delays across the entire "kill chain," which poses a significant barrier to effective operation [5] - Major defense contractors such as Lockheed Martin, Northrop Grumman, Raytheon, and Boeing are involved in providing various missile defense systems, but cross-system communication remains a challenge [5] Industry Involvement - The presentation did not mention Elon Musk's SpaceX, despite earlier reports suggesting that the company might secure a key component contract for the "金穹" system [6]

Core Viewpoint - The Trump administration is revitalizing the National Space Council to guide ambitious space goals and potentially counterbalance Elon Musk's influence in the space industry [1] Group 1: National Space Council - The National Space Council is being reestablished after being dormant for 24 years, with the Trump administration aiming to enhance its role in shaping space policy [1] - The council will be staffed by a small number of officials, including an executive secretary, and will oversee various space-related departments [1] - The council's responsibilities include implementing space policies and coordinating efforts across different governmental space agencies [1] Group 2: Space Ambitions - The council may support the Trump administration's space ambitions, which include building a space-based missile defense system called "Iron Dome," returning to the Moon by 2030, sending astronauts to Mars, and supporting commercial space companies [1] - A new rocket launch is anticipated next year to test systems for sending astronauts to Mars [1] Group 3: Impact on Elon Musk - The revitalization of the National Space Council could diminish Elon Musk's influence, especially as he plans to resign from his role as a top advisor to Trump [1]