Tags: space, clash, titans-, cataclysmic, cosmic, collision, takes, centre, stage, picture, week, image, features, interacting, galaxy, pair, lies, million, light-years, constellation, cetus, whale
Tags: space, portion, cygnus, loop, covering, region, times, diameter, moon, actually, expanding, blastwave, stellar, cataclysm, supernova, explosion, occurred, esadigitized, survey, caltech