特朗普签署行政令要求确保美国“太空优势”

Core Points - The executive order signed by President Trump on the 18th aims to enhance the United States' "space superiority" through increased R&D and private sector investment [1] - The order outlines a shift in U.S. space policy, focusing on lunar exploration via the Artemis program, with a goal of returning Americans to the Moon by 2028 and establishing preliminary elements of a permanent lunar outpost by 2030 [1] - The order emphasizes the development of space nuclear power, including deploying nuclear reactors on the Moon and in space orbits, with plans to launch a lunar surface reactor by 2030 [1] - The executive order encourages private sector investment in the space sector, targeting an additional $50 billion in investments by 2028, and seeks commercial alternatives for the International Space Station, which is expected to retire in 2030 [1] - The Senate approved the nomination of Jared Isaacman, a private astronaut and entrepreneur, as the head of NASA, who supports a dual focus on both the Moon and Mars [1]