The total lunar eclipse, which will last one hour and 43 minutes, is being touted as the longest of this century.
The eclipse will be visible only in the eastern hemisphere of the world - Europe, Asia, Africa, Australia and New Zealand.
It continues: 'The sun shall be turned into darkness, and the moon into blood, before the great and the awful day of the Lord come'. It is going to be a "blood moon" and it is projected to be the longest total lunar eclipse of the 21st century.
"As an ardent skywatcher who derives much pleasure from lovely events like lunar eclipses, it saddens me that there are "prophets of doom" in the world who view these life-enriching events as portents of disaster", Geoffrey Gaherty, a writer for Starry Night Education, told the publication.
The time of greatest eclipse will be 4:21 p.m. EDT (2021 GMT) on July 27, according to EarthSky.org.
A partial eclipse occurs when the moon passes through the Earth's outer shadow; its "penumbra".
Saturn is now at opposition, meaning it and the sun are at opposite sides of Earth.
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When this happens, it causes the Earth's shadow to block the sun.
"A blood moon is the definition used when the moon appears bright, large and reddish in colour, and it only occurs when there is a full moon".
The entire event, from start to finish, will last around four hours. Meanwhile, only parts of South America will get to witness the final stages of the eclipse, and North America, the Arctic, and numerous fish in the Pacific Ocean won't get to see it at all.
The moon will rise tonight at 7:39 p.m. CDT and set at 6:03 a.m. Thursday.
This lunar eclipse is so long because of the day it falls on.
Lunar apogee is the moon's farthest orbital point from Earth making it appear particularly small and distant.
"Also that week, Mars is at the closest it's been since 2003, so Mars will be really bright in the sky".