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Maximizing the scientific accessibility and impact of astronomical data

a blue circle with the mast of a ship on a background of stars sits to the left of text that says The Barbara A. Mikulski Archive for Space Telescopes

Maximizing the scientific accessibility & productivity of astronomical data. The Mikulski Archive for Space Telescopes is an astronomical data archive focused on the optical, ultraviolet, and near-infrared. MAST hosts data from over a dozen missions like Webb, Hubble, TESS, Kepler, and in the future Roman.

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Missions

High Level Science Products

Search Contribute

Host your small mission at MAST

Contribute Mission Data

Search Tools

  • MAST Portal

    MAST Portal

    Search multiple collections of astronomical data-sets from one place—images, spectra, catalogs, timeseries, publication records and more

  • MAST Search

    MAST Search

    The MAST Search Form is our modernized multi-mission search tool. Currently supported missions include Hubble and JWST; check back as more missions are added

  • Virtual Observatory

    Virtual Observatory page

    The Virtual Observatory (VO) seamlessly incorporates astronomical data from active missions, archives, and other institutional resources worldwide

  • exo.MAST

    exo.MAST

    Search by exoplanet to find data, parameters, visualizations, and MAST holdings from Kepler, K2, Hubble, TESS and JWST. Easily find the data taken during the transit, interact with folded light curves, and view or download published spectroscopy

  • Mission Specific Search Forms

    Mission Specific Search Forms

    Data search forms by individual missions

  • MAST CasJobs

    MAST CasJobs

    Run SQL queries on MAST catalogs and tables. Long and complex queries are supported, and users can store the output in a user database

  • z.MAST

    z.MAST

    Search for extragalactic observations and catalog data from MAST high-level science products (HLSP). Download results for further analysis or quickly view detailed information by individual galaxy—aggregated data, image cutouts, observed SEDs, and observations

  • TESSCut

    TESSCut

    Use this search form to find targets within a TESS FFI and generate corresponding cutouts

Learning Resources

  • MAST Notebooks

    icon of a spiral notebook
    Curated Notebooks covering various topics and missions—from astroquery to JWST to Kepler. Whether you're new to MAST or a longtime user, this is the place to discover the latest programmatic tips and tricks from the people who built the Archive.
    Notebook Repo

  • TIKE: Cloud Science

    icon of a cloud
    Learn to work in the cloud! TIKE is a free, cloud-compute environment that runs Jupyter Notebooks in your browser with JupyterLab. Hosted alongside MAST archival data, it is significantly faster to use TIKE than to download and analyze data on your computer. There’s terabytes of observations from TESS, Kepler, HST, GALEX, and more, at your fingertips; no installation required!
    Open TIKE

  • MAST Documentation

    Icon of a book
    Read documentation on many MAST services, including the Portal, the Modernized MAST Search, HLSPs and more.
    View MAST Docs

Catalogs

Pan-STARRS Catalog Search The Panoramic Survey Telescope & Rapid Response System (Pan-STARRS or PS1) is a wide-field imaging facility developed at the University of Hawaii's Institute for Astronomy for a variety of scientific studies from the nearby to the very distant Universe. The PS1 catalog allows searches for the mean measurements and the deeper stacked measurements from images combining all the epochs
Hubble Source Catalog Search The Hubble Source Catalog (HSC) is designed to optimize science from the Hubble Space Telescope by combining the tens of thousands of visit-based source lists in the Hubble Legacy Archive (HLA) into a single master catalog
Exoplanet Atmosphere Observability Table This table is intended for selecting targets when planning observations of exoplanet atmospheres through transmission and emission. The SNR values, based on observed star and planet parameters, provide guidelines for different wavebands and techniques to allow users to determine those exoplanets most amenable to atmospheric characterization

APIs

Astroquery A streamlined interface for Python users to access data in MAST. Replicates most functions of the MAST Portal web interface. Access MAST queries using the same function conventions and return types available for all Astroquery services. Integrate easily with Astropy functionality and other Python analysis tools.
Webservice Programmatic access to MAST data through HTTPS requests. The most direct way to programmatically access data in MAST, it is language agnostic, requiring only the ability to send/receive HTTPS requests.
Classic Search MAST using HTTP GET requests. The results can be returned in a variety of formats including HTML, VOTable XML format, Excel spreadsheet, and comma-separated values, which can simplify ingesting results into user-written programs.

Publishing Resources

Latest MAST News

MAST Newsletter