Yes.
both are equally rare, you should know that
yes
have you ever seen a blue moon? thats why
The term "blue moon" is used when something very rare happens, the most common usage of this term is "Once in a blue moon".
Its fairly rare, but sometimes a second new moon may appear in a month, called a 'blue moon'.
In Mt. Moon
The moon goes through the phases every 28 days. If a full moon occurs twice during a month, the second full moon is a blue moon...pretty rare.
It appears as a full moon twice in one calendar month...rare
Gigi is an ultra rare plant blue pepper red moon yellow pepper
No, a "blue moon" is the second full moon in a single calendar month. On occasion the moon will rise with a slightly blueish or even lavender cast to it, but they are even rarer than the traditional "blue moon." On an additional note, the second new moon in a single calendar month is called a "black moon" and is similarly rare.
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. )
The second full moon of any month is called a 'blue moon'. It is a rare occurrence. The saying 'once in a blue moon' means that something does not happen very often.