WASHINGTON — May’s second full moon will be a rare blue micromoon visible Sunday morning. Here’s what you need to know so you don’t miss it.
Why is it called a blue moon?
Ever heard the saying “once in a blue moon?” A “blue moon” is when a full moon happens twice in the same calendar month. Despite its name, the moon will not appear blue.
May’s second full moon will also be a micromoon. This time, the name is true to how it will appear in the sky — looking much smaller than usual.
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