A blood moon occurs when there’s a full moon in close proximity to the Earth — a so-called super moon — in combination with an eclipse of the moon, which happens when the Earth passes between the sun and moon.

The two events will produce a reddish glow around the somewhat darkened moon for about an hour Sunday night. The last blood moon occurred in 1982 and the next one won’t occur until 2033.

Mormon author Julie Rowe is getting heat for her prediction linking the blood moon and recent calamities to the end times. Rowe issued a statement on her website Sept. 10 acknowledging that her story “is not intended to be authoritative nor to create any church doctrine.’
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Rowe writes about and speaks to audiences about a near-death experience in 2004 when she says she crossed over into the spirit world and was shown tragic upcoming world calamities and told she would be expected to tell others in the future, the Associated Press reported.

"That time has come," her website says.

It almost sounds like something from a comic strip: A total supermoon lunar eclipse, also known as a blood moon. But this is for real — and it's happening Sunday night through Monday.

Here's what you need to know:

What's actually happening is a confluence of three things. The moon will be full and in its closest point in its orbit around the Earth, making it a so-called supermoon, according to Dr. David Wolf, a former NASA astronaut and "extraordinary scientist in residence" for The Children's Museum. Supermoons appear 14% larger and 33% brighter than other full moons.