Lunar eclipse taken from Western Europe on September 28, 2015. A lunar eclipse (also known as a blood moon) occurs when the sun, Earth and moon are aligned and the Moon passes directly behind the Earth into its umbra (shadow).
Three stages of the Lunar Eclipse: The first image shows the full moon. The second image shows the moon partly covered by the earth's shadow. The third image shows the moon fully covered by the shadow of the earth, giving the moon an orange glow.