Due to its reddish color, a total eclipse of the moon is sometimes referred to as a blood moon. In addition, in the 2010s the media started to associate the term “blood moon” with the four full moons of a lunar tetrad, especially the 2014-2015 tetrad coinciding with the feasts of Passover and Tabernacles. A lunar tetrad is a consecutive sequence of four lunar eclipses, spaced six months apart. Continue reading for more images and information.
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