Rare Blue Moon Will Light up the Sky on HalloweenA blue moon refers to a full moon that occurs for the second time in a single month.
Blue Moon To Appear In Sky On Halloween 2020Blue Moon To Appear In Sky On Halloween 2020
A Rare Blue Moon Will Light Up The Sky On HalloweenSpooky season is almost upon us — and this year it will be a little bit spookier. Katie Johnston reports.