A beautiful new image of two colliding spiral galaxies, known as NGC 3921, has been released by NASA. This Hubble image shows NGC 3921, an interacting pair of galaxies in the late stages of its merger. Image credit: NASA / ESA / Hubble / Judy Schmidt, geckzilla.com. It is known today that merging galaxies play a significant role in the evolution of galaxies and the formation of elliptical galaxies in particular. However there are only a few merging...
