Once in a Blue Moon: What was really special about Tuesday night’s sky

That moon that lit up the sky around the Puget Sound is a “Blue Moon,” and the next one won’t happen until 2015.

A Blue Moon is the second full moon in a single month. It only happens once, approximately, every three years.

While it’s rare, it’s been known by many names: Full Sturgeon Moon, Green Corn Moon, Grain Moon or Full Red Moon.

Did you take a photo of the Blue Moon? Share it with us by emailing MyNorthwest.com.