Grand Rapids, Mich. –The blue moon will be at it’s best view around 7 a.m. Saturday.
If you’re a blue moon fan you don’t want to miss this.
A blue moon is when there’s more than one full moon in a single calendar month.
This is the second blue moon of the 2018 calendar year.
It will also be the last until the year 2020.
Posted at 2:34 AM, Mar 31, 2018
and last updated 2018-03-31 02:34:00-04
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