Moons swap orbits !?!? APOD for Nov. o2, 2005
Posted: Wed Nov 02, 2005 1:52 pm
Maybe this is how Plutos moons and other "planets" out there react with each other? 
http://antwrp.gsfc.nasa.gov/apod/ap051102.html
http://antwrp.gsfc.nasa.gov/apod/ap051102.html