... Credit Copyright: ACS Science Engineering Team , Hubble Space Telescope , NASA Explanation: These two mighty galaxies are pulling each other apart. ... NGC 4676 lies about 300 million light-years away toward the constellation of Bernice's Hair ( Coma Berenices ) and are likely members of the Coma Cluster of Galaxies . ... These galactic mice will probably collide again and again over the next billion years until they coalesce to form a single galaxy . ... Publications with words: colliding galaxies ...