The National Aeronautics and Space Administration (NASA, pronounced /ˈnæsə/) 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.

NASA's 50th Anniversary Logo.
NASA's 50th Anniversary Logo

Over the next year, NASA will celebrate 50 years of scientific and technological excellence. NASA has powered us into the 21st century through signature accomplishments that are enduring icons of human achievement. Among those accomplishments are technological innovations and scientific discoveries that have improved and shaped our lives on Earth in a myriad of ways. Please join us as we celebrate the past and look forward to a promising new era of inspiration, innovation, and discovery.
See The Aug. 1 Solar Eclipse on NASA TV and
View NASA 50th Anniversary Moments on YouTube