When galaxies collide, or even when they just come near one another, they can turn beautiful spirals or other tidy systems into messy, weird-looking galaxies. Here is a sample of some of these galactic oddballs. Hoag's Object Clusters of young, massive stars populate the bluish ring of the odd galaxy known as Hoag's Object. This Hubble image captures the face-on ring around the yellowish glow of a normal elliptical galaxy. The elliptical galaxy is 15,000 light-years wide while the inner and oute...