... Galaxy Group Hickson 31 . ... Quite possibly, but not for another billion years. Pictured above , several of the dwarf galaxies of in the Hickson Compact Group 31 are seen slowly merging. ... The above image is a composite of images taken in infrared light by the Spitzer Space Telescope , ultraviolet light by the GALEX space telescope , and visible light by the Hubble Space Telescope . ... Publications with keywords: group of galaxies . Publications with words: group of galaxies . ...