特朗普签署行政令：2028年登月

Core Viewpoint - The article discusses a new executive order signed by Trump that outlines a vision for a "America First" space policy, aiming to ensure the United States leads in space exploration, security, and commercial sectors [2][7]. Group 1: Executive Order Details - The executive order aims to send astronauts back to the Moon by 2028 through NASA's Artemis program and establish a permanent presence on the Moon by 2030 [3][5]. - It emphasizes the development of nuclear energy in space, directing the deployment of nuclear reactors on the Moon and in orbit [5]. - The order also calls for upgrading launch infrastructure and developing commercial pathways to replace the International Space Station by 2030, stimulating private sector innovation and investment [6]. Group 2: Investment and Economic Impact - The executive order is expected to attract at least $50 billion in additional investment to the U.S. space market by 2028 [7]. - It highlights the importance of space superiority as a measure of national vision and will, contributing significantly to national strength, security, and prosperity [7]. Group 3: NASA's Artemis Program Updates - NASA's Artemis 2 mission, which aims to send astronauts into lunar orbit, has been delayed to April 2026, while Artemis 3, targeting a lunar landing, is postponed to 2027 [7].