FITS - Flexible Image Transport System.
High Energy Astrophysics Science Archive Research Center (HEASARC).
heasarc.gsfc.nasa.gov/docs/heasarc/fits.html   reviews

FITS Support Office Home Page.
The Flexible Image Transport System, or FITS, is the format adopted by the astronomical community for data interchange and archival storage. The FITS Support Office is responsible for documenting the FITS standard, participating in its evolution, and advising NASA astrophysics missions on how to present their data in FITS format.
fits.gsfc.nasa.gov/fits_home.html   reviews