Lunar eclipses take place every year, however this one in April 2014 was somewhat special. Because when viewed from earth the blood moon was right next to the planet Mars in the sky. Mars is the bright dot next to the moon in the wide angle photo. Both glow brightly red, making it look just a bit more spectacular than usual.
Lunar eclipses take place when the moon is exactly in the earth’s shadow. The Moon does not completely disappear because of the refraction of sunlight by the Earth’s atmosphere into the shadow. However, if the Earth had no atmosphere, the Moon would be completely dark during an eclipse. The red coloring arises because sunlight reaching the Moon must pass through a long and dense layer of the Earth’s atmosphere, where it is scattered.