Stashed in: NASA, Space!, Astronomy Pics
A photo that looks like an illustration of Saturn with its moon Dione
Source and explanation: http://photojournal.jpl.nasa.gov/catalog/PIA07744
Found via Saturn Moon Titan Facebook page: https://facebook.com/Titan.SaturnsMoon
Bigger version of the amazing photo:
Taken by the Cassani spacecraft.
Imgur comments: http://imgur.com/gallery/o8BvP9v