Every so often we hear about a blue moon in the media and there are always several misconceptions passed along. To be clear, a blue moon is the second full moon in a calendar month. That's it. It's not blue. The next blue moon is a few (okay, many) months off, on January 31, 2018. That's still 2+ years away, but it's never too early to take on misconceptions. So for This Friday in This Blog's History I bring back to you my blog post on the often confused blue moon.
Are Blue Moons Blue?