'Once in a Blue Moon' Happens on Friday -- Why?

July 30, 2015 5:15 PM

25 0

'Once in a Blue Moon' Happens on Friday -- Why?

On Friday, much of the world will have the opportunity to observe a Blue Moon: A somewhat rare occurrence that doesn't have anything to do with the moon's color.

During most years, the Earth experiences 12 full moons, one in each month. But some years, such as 2015, have 13 full moons, and one of those "extra" lunar displays gets the label of Blue Moon.

Also read: Mourning and vigilance in San Bernardino 1 year after terror attack

Read more

To category page

Loading...