NGC 1316 and NGC 1317
NGC 1316 and NGC 1317 are a pair of interacting galaxy located about 60 million light years away towards the constellation Fornax, the Furnace. NGC 1316 is one of the brightest elliptical galaxies in the Fornax galaxy cluster, and one of the strongest and largest radio sources visible from Earth.
While NGC 1317 is a small spiral galaxy with an apparently uneventful history, NGC 1316 appears to have had a turbulent life. Around the galaxy are tidal tails, stars and other bits ripped away from smaller galaxies and mixed up by strong gravitational forces. NGC 1316 also contains unusual dust lanes and small globular clusters, suggesting the annexation of a spiral galaxy some 3 billion years ago.
Image and information from ESO.