... 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. ... Most assuredly, the pictured galaxies of Hickson Compact Group 31 will pass through and destroy each other, millions of stars will form and explode , and thousands of nebula will form and dissipate before the dust settles and the final galaxy emerges about one billion years from now. ...