“金穹”细节曝光，如何从PPT成为现实变数不少

Core Points - The "Iron Dome" missile defense system, a key project for the Trump administration, has been detailed with a complex four-layer interception system, but its transition from concept to reality remains uncertain [1][2] - The system's space-based component will consist of numerous satellites for missile warning, tracking, and interception, integrating various existing satellite systems [1] - The project faces challenges in satellite development and coordination among different defense contractors, with significant uncertainties regarding the system's architecture and required infrastructure [3] Funding and Costs - The estimated cost for the "Iron Dome" system is projected at $175 billion, with Congress allocating $25 billion and an additional $45.3 billion requested in the 2026 budget [3] - Experts predict that the actual costs could exceed initial estimates, with projections indicating that space-based components alone may surpass $500 billion over the next 20 years [3] Contractor Involvement - The system will involve multiple defense contractors, with the need for effective communication between different systems being a critical bottleneck [3] - SpaceX's potential involvement is uncertain, as the company was previously seen as capable of launching the required satellites, but the government is looking to reduce reliance on it following a fallout with its founder [2]