US NASA National Space Science Data Center

The National Space Science Data Center (NSSDC) provides multidiscipline data and information services, including a large digital data archive from past NASA space science missions along with directories, catalogs, and access to widely distributed science data resources. The NSSDC is responsible for the long term archiving and preservation of all space science data. The NSSDC works closely in federation with the other Office of Space Science (OSS) sponsored discipline data centers. This federation is responsible for providing a coherent and coordinated OSS-wide data environment to improve quality, accessibility, and usability of NASAs space data holdings for scientists, educators, and the general public.