Just two days ago, the Cassini spacecraft flew by Saturn's tiny moon Helene at a distance of only 7000 km (4300 miles). As it swept past, Cassini's ...

Moody Moon. By Phil Plait. Sept 24, 2009 8:00 AM. Tweet Share Share Comment Tweet Share Share Comment My brother-in-law is a pretty good photographer (as you may remember). He just ...