The National Aeronautics and Space Administration (NASA) is a U.S. government agency responsible for science and technology related to air and space, functioning as the civilian space agency of the United States. Its creation was a direct response to the Soviet Union's launch of the Sputnik satellite in 1957, which initiated the Space Age. NASA was formally established on October 1, 1958, replacing the earlier National Advisory Committee for Aeronautics (NACA), which had been created in 1915. The agency's statutory authorization is the National Aeronautics and Space Act of 1958, which provides the authority to carry out its objectives, including space exploration and aeronautics research.
NASA works by developing and executing missions across four main areas: aeronautics, science, space technology, and human exploration. Its mechanism involves developing key elements for human deep-space exploration, such as the Space Launch System (SLS) rocket and the Orion crew vehicle, as part of the Artemis program. The agency also operates major scientific instruments like the James Webb Space Telescope and maintains a global communications network, the Deep Space Network.
The agency connects to a global network of partners, including international space agencies like the Japan Aerospace Exploration Agency (JAXA) and the European Space Agency (ESA), and commercial entities like SpaceX and Blue Origin through programs such as the Commercial Lunar Payload Services.
A significant recent change occurred in 2026 when Administrator Jared Isaacman announced a major overhaul of the Artemis program. This pivot involved standardizing the SLS rocket by canceling upgrades like the Exploration Upper Stage (EUS) and deferring the historic lunar landing of Artemis III to Artemis IV in early 2028, while the core goal of returning humans to the Moon remains.