NASA's Hubble Sees Asteroid Spout Six Comet-like Tails
Source: NASA Press Release 13-321
Excerpt: Hubble researchers say they were "literally dumbfounded" when they took a close-up look at an object that lives in the asteroid belt but superficially looks like a comet. It has no less than six dust tails that seem to be forming sequentially. The entire structure rotates like a bicycle wheel with spokes on one side.
http://hubblesite.org/newscenter/archive/releases/2013/52/text/
http://hubblesite.org/newscenter/archive/releases/2013/52/text/