Sky watchers are getting ready for an evening of special viewing when a total lunar eclipse arrives just after midnight on April 15.

What's more, this begins a rare sequence of four total lunar eclipses expected over the next two years.

YOUR TAKE: Share your eclipse, starry sky photos

Some Christians see this series of so-called blood moons as linked to a biblical prophecy of the End Times.

A lunar eclipse occurs when the sun, Earth and moon line up so the Earth's shadow falls on the moon, darkening it.

The one on April 15 will begin at 1:20 a.m. on the East Coast, according to Sky and Telescope magazine.

Blood moon eclipse on April 15 is a special event