ARP 142: This image shows two interacting galaxies: NGC 2936, once a standard spiral galaxy, and NGC 2937, a smaller elliptical. Located some 350 million light-years distant the distortion evident in the malformed spiral galaxy shows the power of galactic tidal forces. Awesome, in a word.
Using both ESA/ESO/NASA provided software and Photoshop I combined four b&w Hubble Telescope images (courtesy NASA and MAST) captured with wide-band filters at 475nm (blue), 606nm (orange), 814nm (near-infrared), and the narrow-band 657nm (red) to create this image. Enjoy.