NASA is a United States government agency that is responsible for science and technology related to air and space and was created in 1958 to oversee U.S. space exploration and aeronautics research. NASA’s robotic space probes have visited every planet in the solar system and several other celestial bodies. Its telescopes have allowed scientists to look at the far reaches of space. Finally, NASA’s satellites have revealed a wealth of data about Earth, resulting in valuable information such as a better understanding of weather patterns.