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News stories tagged with "blue-moon"

Happy full blue moon!

Above the clouds, a blue moon will shine tonight to usher in the new year for the first time in 20 years. A blue moon is when there are two full moons in a month. Todd Moe talks with St. Lawrence University astronomer Aileen O'Donoghue about a rarer blue moon on New Year's Eve.  Go to full article

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