Just exactly when is the next Supermoon Blue Moon?
As we ready ourselves for the Supermoon Blue Moon on Monday, Aug. 19 where it officially becomes 100% full at 2:26 p.m. EDT (1826 GMT). Some of you eagle-eyed readers might be asking "Wait a minute, during last year's Supermoon Blue Moon you said the next Supermoon Blue Moon was in 2037, thus making it a once-in-a-decade event?" And you'd be right, well sort of… it's complicated.
The term "Blue Moon" actually has two meanings so they're not quite as rare as you might think, so much for "once in a blue moon," right?
