because it scary
The term "blue moon" does not refer to the color, but to an occasional fourth full moon in a season (normally there are three), or alternately, to a second full moon in a month (usually there is one).
The "blue moon" isn't really blue; it is just a saying. People used to say "once in a blue moon" for anything that was rare or unusual, but this got redefined as "the second full moon in a calendar month". This isn't really all that rare; on average, about every other year. The Moon is full now; it will rise this evening at about sunset. And since this is the second full moon in December, it will be a "blue moon". (For people in the Far East, like Japan, China, Indonesia and Australia, the full moon "today" is on January 1, 2010. For them, the "blue moon" will be 29.5 days from now, on January 30, 2010. )
If you've ever heard of the expression "once in a blue moon", you would probably refer to it as being "rare" or "unusual", so if you were born on a blue moon (which I have just found out I was) it means you're pretty unique!
Usually the first two and the last two letters are blue, making it "once in a blue moon"
She didn't, but Blue music Blue skies
it has an atmosphere
Earth's moon is unusually large in proportion to its planet.
Blue Moon Blue was created on 2006-03-15.
A "blue moon" is not really blue, but is two full moons in one month. Which makes it a blue moon.
A blue moon appears once every two or three years. It is an astronomical phenomenon where the moon actually colors blue. This is why it is called a 'blue moon'.
It is a combination of:* A super moon * A blue moon * And a blood moon
The term "blue moon" refers to the second full moon in a calendar month, which happens roughly every 2.7 years. The moon does not actually appear blue in color. The phrase "once in a blue moon" has led to the misconception that the moon can appear blue at times.