On April 15th there will be a total lunar eclipse that will turn the moon a coppery red, according to NASA. It is being called by the media a Blood Moon. It is one of four total eclipses that will take place in North America within the next year and a half.  Lunar eclipses — penumbral, partial or umbral — occur in random order, NASA says. “Getting four umbral eclipses in a row is like drawing a rare lunar poker hand of four of a kind. Astronomers have a name for that lucky draw. It’s called a tetrad”, states NASA. A lunar tetrad is four total lunar eclipses in a row. The four blood moons will occur in roughly six-month intervals on the following dates: April 15, 2014; October 8, 2014; April 4, 2015, and September 28, 2015.

The origin of the term Blood Moon is religious, at least according to Christian pastor John Hagee, who wrote a 2013 book about Blood Moons. For more information:http://earthsky.org/space/what-is-a-blood-moon-lunar-eclipses-2014-2015