Lunar Eclipse

A Lunar Eclipse happens when the Moon moves into Earth's shadow. This can occur if the Moon, Earth, and Sun are either aligned, or closely aligned. It's sometimes called a blood moon, due to the Moon's color being red.

Total Lunar Eclipse
A Total Lunar Eclipse happens when the Moon falls entirely under the Earth's umbra, causing the moon to appear fully red. The curved edge of the moon is still being hit by sunlight, causing the rest of the moon to be comparatively dim.