美前NASA官员：马斯克发出的威胁“越过了红线”，美政府对航天项目严重依赖SpaceX深感不安，已急寻替代者

Group 1 - The U.S. government and NASA are urgently seeking alternatives to SpaceX due to their heavy reliance on the company for current space projects following a heated dispute between President Trump and Elon Musk [1][4] - SpaceX conducted 134 orbital launches last year using Falcon 9 and Falcon Heavy rockets, surpassing the total launches of all other companies combined [3] - SpaceX's satellites account for 84% of the total satellites to be launched globally in 2024, indicating its dominant position in the space launch market [3] Group 2 - The U.S. government has inquired with at least three commercial space companies—Rocket Lab, Stoke Space, and Blue Origin—about their rocket development progress and potential launch services for government missions [3] - These competitors are still in the early stages of development and lack the reliability and cost-effectiveness of SpaceX's reusable rockets [3] - SpaceX's Crew Dragon spacecraft is currently the only vehicle capable of transporting astronauts to the International Space Station, filling a gap left since the retirement of the Space Shuttle in 2011 [3] Group 3 - The conflict between Trump and Musk escalated over a bill named "Big and Beautiful," with Trump expressing disappointment in Musk's response to the bill, which Musk claimed he had never seen [4][5] - Musk retaliated by threatening to retire the Crew Dragon spacecraft, which is critical for U.S. space missions, highlighting the risks of dependency on his company [5] - Concerns within NASA have been raised regarding Musk's impulsive behavior and the potential consequences of his threats to halt operations [5]