The fight took place in the constellation Piscis Austrinus, the Earth about 100 million light years. In fact, the gravity of the three galaxies makes them closer. In the process of dust and gas in the center of the galaxy are attracted to the other two galaxies.
Latest photos that capture the Hubble telescope allows astronomers to consider the motion of dust and gas from this galaxy to galaxy, from which detects interactive relationship between them. In the picture, we can see two galaxies ellipse with the dust and gas distribution fairly concentrated. The galaxy NGC 7174 (middle, right) has a spiral shape due to stretch across two galaxies.

NASA astronomers believe that galaxies are bad aspects of each wheel as Milky, but in future it will be swallowed whole by the two neighbors. Then two galaxies ellipse will short together to create a super-galaxies larger Milky hundreds of times.
Hubble space telescope - the largest telescope in the universe - is a product of aerospace agencies and the U.S. European Space Agency. It works on the orbital surface of the globe and fly out a 612 km orbit around the 96th minute. Optical lens system of the Hubble let it record images with extremely high accuracy.