Last adventure ahead for NASA’s Cassini spacecraft at Saturn

NASA's Cassini spacecraft faces one last perilous adventure around Saturn. Cassini swings past Saturn's mega moon Titan early Saturday for a gravity-assisted, orbit-tweaking nudge. "That last kiss goodbye," as project manager Earl Maize calls it, will push Cassini onto a path no spacecraft has gone before — into the gap between Saturn and its rings. It's treacherous territory. A particle from the rings — even as small as a speck of sand — could cripple Cassini, given its velocity. Ca...