Blue moon to be seen over Gladstone sky tonight
A BLUE moon will be seen in the sky over Gladstone tonight for the first time in just under three years.
A blue moon happens when there are two full moons in a month.
But unless you are planning on wearing blue-shaded tinted sunnies, it will look the same colour as it did last month.
Blue moons occur once every two and a half years or so.
In some cases there really have been blue moons because of dust particles suspended in the atmosphere, which are just the right size to scatter red and yellow light.
Particles suspended in the atmosphere from smoke or volcanic ash can trigger this 'blue moon effect'.
The term 'once in a blue moon' is believed to have its origins dating back to the 16th Century.
The last blue moon in Australia was on August 31, 2012.
The next one is expected to be on January 31, 2018.