The Cassini spacecraft sent an image of Saturn's natural satellite Mimas. On examination, the image resembles that of the fictional planet destroyer of Star Wars fame, 'Death Star.' Mimas has a barren landscape and no atmosphere. The closest flyby done by Cassini was 5900 miles from Mimas.
Cassini spacecraft captured a closest highest-resolution image of Saturn's moon Pandora on December 18, 2016.