 Bright pink nebula almost completely encircled the spiral galaxy. The ring structure and the galaxy's distorted spiral shape result from a smaller galaxy scoring a cosmic bull's eye, hitting the center of NGC 922 some 330 million years ago. As the small galaxy passed through the middle of 922, it set up ripples that disrupted the clouds of gas and triggered the formation of new stars whose radiation then lit up the remaining gas. The bright pink color of the resulting nebula is a characteristic sign of this process. Despite the immense number of galaxies in the universe, this is one of only a handful known in our cosmic neighborhood.