photo: Creative Commons / MadriCR
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WorldNews.com
19 May 2016
For those non-believers who say something will only happen “once in a blue moon,” get ready for it to happen.On Saturday, May 21, the moon will grow larger and will be full – making it a blue moon. The most common definition for a blue moon is a second full moon occurring in a calendar month. Most years have 12 full moons – or one per month....