A Blood Moon is rare. Any Chicagoan who looked skyward on the night of October 17, 1986, gaped at the spectacular red moon. It was an exceptionally vivid total lunar eclipse. Its reddish glare only occurs when the earth and the moon’s orbits perfectly align with the sun and tilt at an exact 5.5-degree angle blocking out most of the sun’s direct light especially from its blue spectrum.
 
This particular Blood Moon would not be remembered as a unique astronomical phenomenon but instead, it would serve as an ugly reminder of the violence that haunted Chicago for years.
 
Canada and USA with a Focus on Chicago, Illinois