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Maximizing scientific accessibility and productivity of astronomical data.

The Mikulski Archive for Space Telescopes (MAST) is a NASA funded project. We provide a variety of astronomical data archives focused on scientific data sets in the optical, ultraviolet, and near-infrared parts of the spectrum. MAST is located at the Space Telescope Science Institute (STScI).

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See All Of MAST's Missions and Data Collections!

HST - Hubble Space Telescope

JWST - James Webb Space Telescope

TESS - Transiting ExoplanetSurvey Satellite

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Notice: GalexView will no longer be available starting on Jan. 12th 2021, due to Flash end-of-life. More information, and alternative ways to search for GALEX data at MAST, can be found here: archive.stsci.edu/contents/newsl…

Mission Update: #TESS Sector 30 ingest is now complete, and all services have been updated.

HLSP Update: OPAL (Simon et al.) global maps of Uranus from HST observations during Cycle 28. Seven filters and two rotations.archive.stsci.edu/prepds/opal/

HLSP Update: New RELICS (Coe et al.) models: “LENSTOOL” for three clusters and “GLAFIC” for three other clusters. Also two corrected models for “ZITRIN-LTM” for abells295 v2 and cl0152-13 v1, who had WCS headers that were offset by 10 arcsec. archive.stsci.edu/prepds/relics/

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Maximizing the scientific accessibility and impact of astronomical data

Missions

High Level Science Products

Latest MAST News