r/spaceporn – Saturn’s moon Helene, a trojan moon of Dione (co-orbital in L-4 point), as seen by Cassini in approximate natural color. Data taken in June 2011.
r/spaceporn: SpacePorn is a subreddit devoted to high-quality images of space. As long as the focus of the image is of the stars or related to space in some way then it is allowed. This includes artwork as well as photography.