NGC 4676: When Mice Collide . ... Credit Copyright: ACS Science Engineering Team , NASA Explanation: These two galaxies are pulling each other apart. Known as " The Mice " because they have such long tails, each spiral galaxy has likely already passed through the other and will probably collide again and again until they coalesce. ... NGC 4676 lies about 300 million light-years away toward the constellation of Coma Berenices and are likely members of the Coma Cluster of Galaxies . ...