The high-resolution image of Daphnis is pretty astonishing [1]. You can see the moon back-illuminating a thin silver lining around the crest of the trailing density wave. I missed it just looking at the thumbnail picture!<p>Both of the moons imaged in the flyby, Daphnis and Pandora, are of interest because they're examples of shepherd moons [2] that sculpt the surrounding ring material. For example, the Cassini Division [3] is made by Mimas clearing material at the 2-to-1 orbital resonance. Daphnis, along with Pan, also happens to be the only shepherd moon orbiting within Saturn's main rings.<p>[1] <a href="http://photojournal.jpl.nasa.gov/catalog/PIA21056" rel="nofollow">http://photojournal.jpl.nasa.gov/catalog/PIA21056</a> (click the "full resolution JPEG")<p>[2] <a href="https://en.wikipedia.org/wiki/Shepherd_moon" rel="nofollow">https://en.wikipedia.org/wiki/Shepherd_moon</a><p>[3] <a href="https://en.wikipedia.org/wiki/Rings_of_Saturn#Cassini_Division" rel="nofollow">https://en.wikipedia.org/wiki/Rings_of_Saturn#Cassini_Divisi...</a>