Gems of the Galaxy Zoos—A Wide-ranging Hubble Space Telescope Gap-filler Program*

We describe the Gems of Galaxy Zoos (Zoo Gems) project, a gap-filler project using short windows in Hubble Space Telescope's schedule. As with previous snapshot programs, targets are taken from pool based on position; we combine objects selected by volunteers both Zoo and Radio citizen-science projects. uses exposures Advanced Camera for Surveys (ACS) to address broad range topics galaxy morphology, interstellar-medium content, host galaxies active galactic nuclei, evolution. Science cases include studying interactions, backlit dust galaxies, post-starburst systems, rings peculiar spiral patterns, outliers usual color-morphology relation, Green Pea compact starburst double radio sources extended emission-line regions around nuclei. For many these science categories, final selection larger list used public input via voting process. Highlights date prevalence tightly-wound structure blue, apparently early-type nearly complete Einstein ring group lens, redder components at lower surface brightness surrounding starbursts, high-probability examples hosting large sources.