Cassini had the temerity to pass close to Saturn's active moon Enceladus while I was in the Galapagos, so I couldn't blog about it. Ever vigilant, however, Emily got the goods, including this incredible mosaic.
Emily's post has lots more info on the pass and the moon itself. Go look.
Edited to add: An oversight on my part; obviously I should have also linked to the original CiCLOPS site as well!