ARP 195 is a triplet set of galaxies in catalogued in the Atlas of Peculiar Galaxies. The three are engaged in a tug of war that is ripping stars from each of them.
Image Credit: Nasa / ESA
hogewash
Never pick a fight with a man who buys pixels by the terabyte.
I wonder, if such a thing was happening to our own galaxy, would it affect our daily lives? Are these collisions, for example, changing the orbits of planets around stars on the outer fringes of those galaxies? If so, is it happening rapidly enough to be noticeable in a human lifetime?