A blue moon is the second moon in a month where two occur. So, once a year, since there are 13 lunar months to our solar year, there is a blue moon.
"Once in a blue moon" comes to mean "exceedingly rare" – and over and above the astronomy, there is that rare quality in time right now.
Posted via email from Dean Whitbread
You might want to read
- Three Fifteen Blues
Woke up this morningIt was three fifteen a.m.Woke up this morningWas only three fifteen a.m.I ain't sleeping no more in this bedCoz last night the strangest dream cameDreamt I was a wizard named Woo-a...
- Ten Years of the 21st Century
A simple song, written at the stroke of midnight GMT on New Year's Eve 2010. It wasn't meant to be depressing, though it's certainly not a cheery festive little number... Ten Years of the 21st Ce...
- A Dirty Universe, But A Pretty One
Scientists are proposing that asteroid impacts on Earth could have seeded other planets and moons in our solar system with life.Brett Gladman from the University of British Columbia (UBC) in Vancouver...