Blue Moon (Frank Sinatra - with Lyrics)
TIMEScienceastronomySee an Incredible Photo of Friday Nights Blue MoonEduardo MunozReutersA full moon, known as the Blue Moon, is seen next to the Statue of Liberty in New York on July 31, 2015.It usually happens just once every couple of years
The second full moon of July rose Friday night, a phenomenon referred to as a blue moon.
Though the phrase once in a blue moon is meant to describe a rare event, a blue moon is neither rare, or blue. Blue moon is actually a term used to describe the second full moon in a single calendar month. Most years only have 12 moons, but this year has 13, which happens every two to three years, according to astronomers. Blue moons dont actually appear blue, but the moon can appear blue after events on earth like wildfires and volcanic eruptions, according to NASA.
Source: http://time.com/3981125/blue-moon-photo/
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