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A blood moon rises over the Eastern hemisphere Friday, July 27, 2018. Skywatchers around much of the world are looking forward to a complete lunar eclipse that will be the longest this century.
Harald Tittel / AP
The moon turns red during a total lunar eclipse in Bernkastel-Kues, Germany, Friday, July 27, 2018. Skywatchers around much of the world are looking forward to a complete lunar eclipse that will be the longest this century. 
