This artist concept illustrates one of the largest smash-ups of galaxies ever observed. NASA Spitzer Space Telescope spotted the four galaxies shown here yellow blobs in the process of tangling and ultimately merging into a single gargantuan galaxy.
This artist concept illustrates one of the largest smash-ups of galaxies ever observed. NASA Spitzer Space Telescope spotted the four galaxies shown here yellow blobs in the process of tangling and ultimately merging into a single gargantuan galaxy.