blue moon

Look up the sky tonight and see the full moon, its a blue moon. No, the moon didn't turn blue, its actually a rare occurrence to have a 4 full moon in a season. The current one is the third full moon making it a blue moon. Some defines blue moon as a full moon happening twice in a month like what happens in december of 1999. Still others defines it as the third full moon of 4 in a season which is what we are having right now. Go see it, its a rare event, once in a blue moon.

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