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MAST (for Mikulski Archive for Space Telescopes) is a NASA-supported online archive of survey-data hosted by the Space Telescope Science Institute (STScI). Among the missions for which it archives data are HST, JWST, TESS, Swift, XMM-Newton, Gaia, Kepler, IUE, GALEX, FUSE, and EUVE. It was established in 2001, originally using the name Multimission Archive for Space Telescopes. It was an expansion of the earlier Hubble Data Archive, incorporating data from other NASA missions.