Look Out for a Blue Moon Friday
The next blue moon will take place in 2015.
Look to the sky Friday to see a "blue moon."
But don't expect to see the color blue. A blue moon refers to the rarity of multiple full moons in a month or season. Friday's full moon will be the second in August. The first took place on Aug. 1.
Two blue moons in a month typically occurs every 2.7 years, according to the Huffington Post.
The last blue moon was on Dec. 31, 2009.
Best time to see the Blue Moon: The moon will be at its fullest at 8:58 a.m. CST, according to the Farmers' Almanac.
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