Jupiter had brief encounter with icy companion

For 12 years in the middle of last century, the giant planet drew a passing comet into orbit before letting it go again

http://feeds.newscientist.com/c/749/f/10898/s/620e5c9/l/0L0Snewscientist0N0Carticle0Cdn17780A0Ejupiter0Ehad0Ebrief0Eencounter0Ewith0Eicy0Ecompanion0Bhtml0DDCMP0FOTC0Erss0Gnsref0Fspace/story01.htm