Hubble took this image of a pair of interacting galaxies. According to NASA:
The distorted shape of the larger of the two galaxies shows signs of tidal interactions with the smaller of the two. It is thought that the smaller galaxy has actually passed through the larger one.
Amazing to think about, yes? Well, don’t hold your breath, but this will be us someday.
(Click the photo to go to the image home page, which is full of all sorts of geeky data. Look to the lower right for various wallpaper sizes to download.)