The Geminid meteor shower peaks on Dec. 13th and 14th when Earth runs through a stream of debris from a strange object that some astronomers are calling a “rock comet.”
The 2012 Geminid meteor shower peaks on the night of Dec. 13-14, The Geminids are a unique meteor shower in that their identified parent body is not a comet, but what seems to be an asteroid! Of the meteor showers with known parent bodies studied by meteor scientists, the Geminids are the only shower to have an asteroidal parent body; all others have a cometary origin.
3200 Phaethon measures 5.10 km in diameter which increases the ‘unique’ factor; considering the amount of debris we see, we would expect Phaethon to be a much larger body!
( via beforeitsnews.com)