Here’s another color composite from Cassini, showing Rhea on the far side of the rings, its northern tip peeking through the Cassini Division. (I’m not 100% sure what smaller moon that is on the left, but my guess is either Janus or Epimetheus.)

What I find interesting in this image is the bright streak within the rings near the right side…this may be a result of my compositing methods or it may actually be a brighter segment within the ring structure….a spoke, perhaps? Rising above the ringplane and seen edge-on? It would need a look from actual scientists to say for sure, but that’s what it looks like to me! 🙂

The raw images were taken by the Cassini spacecraft on May 11, 2010 at a distance of almost 1.9 million miles from Rhea.

Image: NASA/JPL/SSI/J. Major