In 1957, something alarming happened. The Soviet Union launched a tiny satellite called Sputnik into space. It was the first human-made object to orbit Earth. Americans were shocked. If another country could put something in space, what else could they do? The United States needed to catch up fast. On October 1, 1958, the government created NASA. NASA stands for the National Aeronautics and Space Administration. Its job was to explore space and make new discoveries. Scientists and engineers from all over the country came to work there. They built rockets, tested spacesuits, and trained astronauts. Within eleven years, NASA did something incredible. On July 20, 1969, astronaut Neil Armstrong walked on the moon. It was one of the greatest achievements in human history. Today, NASA still pushes boundaries. They send rovers to Mars, study distant galaxies, and even plan trips to asteroids. What started as a race against another country became a quest to understand the universe.