特朗普签令

Group 1 - The article discusses the signing of an executive order by President Trump on February 18, which outlines a vision for a "America First" space policy to ensure the United States leads in space exploration, security, and commercial sectors [1] - The order mandates a return to the Moon by 2028 and the establishment of initial facilities for a permanent lunar outpost by 2030, including the deployment of nuclear reactors on the Moon and in orbit [3] - The directive aims to upgrade launch infrastructure and develop commercial pathways to replace the International Space Station by 2030, stimulating innovation and investment in the private sector [3]