The National Aeronautics and Space Administration is an agency of the United States government, responsible for the nation's public space program. NASA was established on July 29, 1958, by the National Aeronautics and Space Act. Responsible for space program, long-term civilian and military aerospace research. NASA's self-described mission statement is to "pioneer the future in space exploration, scientific discovery, and aeronautics research". Aeronautics: pioneers and proves new flight technologies that improve our ability to explore and which have practical applications on Earth. Science: explores the Earth, moon, Mars and beyond; charts the best route of discovery; and reaps the benefits of Earth and space exploration for society.