This is an archive for the Flexible Image Transport System [FITS], the standard data interchange and archival format of the worldwide astronomy community.

[free/open source - Windows, Macintosh, Unix] Download FITS viewers for various platforms.

The format adopted by the astronomical community for data interchange and archival storage. Responsible for documenting the FITS standard, participating in its evolution, and advising NASA astrophysics missions on how to present their data in this type of format.

International control authority for FITS [Flexible Image Transport System].