Rare New Year's Eve 'blue moon' to ring in 2010
Once in a blue moon there is one on New Year's Eve. Revelers ringing in 2010 will be treated to a so-called blue moon. According to popular definition, a blue moon is the second full moon in a month. But don't expect it to be blue - the name has nothing to do with the color of our closest celestial neighbor.
A full moon occurred on Dec. 2. It will appear again on Thursday in time for the New Year's countdown.
