Halloween may be a little spookier this year. A blue moon is set to light up the sky on Oct. 31. Many have heard the phrase, “once in a blue moon.” It refers to something rare, just like this ...

Skywatchers of Arizona, your week will begin with a chance to witness a unique celestial event. On Monday, a super blue moon will illuminate the evening skies, offering a stunning spectacle as two ...

The moon is growing larger and will be full by Saturday, May 21. It will also be a blue moon. The most common definition for a blue moon is a second full moon occurring in a calendar month. Along ...

Spooky season is almost upon us — and this year it will be a little bit spookier. The night sky on Halloween will be illuminated by a blue moon, the second full moon in a month. The relatively rare ...

Spooky season is upon us — and Halloween night will be even a little bit spookier. The night sky will be illuminated by a blue moon, the second full moon in a month. And with mostly clear skies ...