NASA, the National Aeronautics and Space Administration, is the U.S. government agency responsible for the nation's civilian space program and for aeronautics research. Established in 1958, NASA has achieved remarkable feats, including landing the first humans on the Moon with the Apollo missions, advancing our understanding of the universe with space telescopes like Hubble, and exploring Mars through rover missions like Curiosity and Perseverance. Today, NASA continues to pioneer space exploration, research Earth’s climate, develop new aeronautics technology, and collaborate on international space initiatives.