The primary function of the National Aeronautics and Space Administration (NASA) is to oversee the nation's civilian space program and for aeronautics and aerospace research. Established in 1958, NASA conducts space exploration missions, advances scientific knowledge of space and Earth, and develops new technological innovations to enhance air and space travel. NASA is known for its ambitious programs, such as the Apollo moon-landing missions, the Space Shuttle program, and the International Space Station collaboration. It effectively contributes to understanding our universe and proposes advancements in science and exploration.