"""A combination photo shows (clockwise from top left) the moments during and after a total lunar eclipse, also known as a """"blood moon"""", pictured from Encinitas, California October 8, 2014. The coppery, reddish color the moon takes is made as it passes into Earth's shadow. The total eclipse is the second of four over a two-year period that began April 15 and concludes on Sept. 28, 2015. The so-called tetrad is unusual because the full eclipses are visible in all or parts of the United States, according to retired NASA astrophysicist Fred Espenak. (Photo by Mike Blake/Reuters)"""
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