The image was taken when Cassini was only about 62,000 kilometers from the large icy moon last year.
The probe was launched in 1997, and continues its mission - it will fly past Titan tomorrow, and later this year will take a picture of Earth passing behind Saturn in June.
Dione has become an object of particular interest to the Cassini mission since oxygen was detected in its upper atmosphere .... http://www.dailymail.co.uk
