Welcome to the Space Telescope Science Institute (STScI) -- home of science program selection, grant administration, planning, scheduling, and public outreach activities for the Hubble Space Telescope (HST). STScI provides data archive and distribution for all of NASA's optical/UV missions, including HST. STScI is also the science and operations center for the 6.5m James Webb Space Telescope (JWST). Details on these and other related topics can be found throughout the site.