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How Does a Lunar Eclipse Work?

When the moon passes through the Earth's shadow, it causes the moon to look very unusual for a short period of time. This event is called a lunar eclipse, and it occurs roughly twice a year. Learn more about how lunar eclipses work in this video! Credit goes to TheWusa from de.wikipedia.org for the illustrations that this video’s light scattering animations are based on. (Dec. 10, 2011, eclipse)
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