🌍 美国沃恩航空科技大学
The National Aeronautics and Space Administration (NASA ) is an independent agency of the U.S. federal government responsible for the United States' civil space program, as well as research in aeronautics and space. Headquartered in Washington, D.C., NASA operates ten field centers across the US and is organized into three mission directorates: Human Spaceflight, Research and Technology, and Science. Established in 1958 amid the Space Race, NASA succeeded the National Advisory Committee for Aeronautics (NACA) to give the US space program a distinct civilian orientation focused on peaceful applications. Since then, it has led most American spaceflight programs, including Project Mercury, Project Gemini, the Apollo program, Skylab, the Space Shuttle, the International Space Station (ISS), and the ongoing multi-national Artemis program. NASA maintains extensive ground and communications infrastructure, including the Deep Space Network and the Near Earth Network. Its science programs focus on Earth observation through the Earth Observing System, heliophysics research, Solar System exploration with robotic missions such as New Horizons and the Perseverance rover, and astrophysics investigations using space-based observatories including the James Webb Space Telescope and the Hubble Space Telescope. The Launch Services Program oversees operations for uncrewed launches. The agency supports the ISS through international partnerships and highly successful commercial initiatives, such a