A seagull flies in front of a total lunar eclipse, also known as a “blood moon”, in Sydney

A seagull flies in front of a total lunar eclipse, also known as a “blood moon”, in Sydney

A seagull flies in front of a total lunar eclipse, also known as a “blood moon”, in Sydney 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 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. REUTERS/David Gray (AUSTRALIA – Tags: ENVIRONMENT SOCIETY ANIMALS)