What AI says about NASA Guide Star Catalog

The Catalogs and Surveys Group (CASG) at the Space Telescope Science Institute manages and provides access to MAST catalogs, sky surveys, and related software and data services. It offers data-center resources, mission information, Virtual Observatory tools, and support for the Hubble Space Telescope and related missions. The site notes a migration of its web services in 2010 and invites users to report broken links or services.