Launched in 2009, the Kepler Mission is surveying a region of our galaxy to determine what fraction of stars
in our galaxy have planets and measure the size distribution of those exoplanets.
Although Kepler completed its primary mission to determine the fraction of stars that have planets in 2013,
it is continuing the search, using a more limited survey mode, under the new name K2.
The K2 Data Search Service provides the main catalog for all K2 data.
All MAST catalog holdings are available via a ConeSearch endpoint.
This service provides access to all, with an optional non-standard parameter for an individual catalog to query.
The available missions are listed at http://archive.stsci.edu/vo/mast_services.html,
and include Hubble (HST) data, Kepler, K2, IUE, HUT, EUVE, FUSE, UIT, WUPPE, BEFS, TUES, IMAPS, High Level Science Products (HLSP), Copernicus, HPOL, VLA First, XMM-OM, and SWIFT.