Often you heard it said: Once in a blue moon. The world will view the rare occasion blue moon today Friday the 31st. NASA advised that the name should not fool you. Blue moon simply means two full moons occurrence in one calendar month. Ordinarily, a typical year has just 12 full moons but this year will have 13 full moons. Blue moons could be gray or white just like every other moons at night. There are however rare occasions when moon could actually be blue; especially when their was a volcanic eruptions. Todays moon could be red.
"Often, when the Moon is hanging low, it looks red for the same reason that sunsets are red, NASA explains. "The atmosphere is full of aerosols much smaller than the ones injected by volcanoes. These aerosols scatter blue light, while leaving the red behind."
I bet you would like to do what you do once in a blue moon tonight; you have an excuse.
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