Actually, the eclipse will start around 6:30 as the Moon moves into the penumbra. This is a weaker shadow that surrounds the umbra, the point at which the the shadow is total and the earth starts "to take a bite out of the moon". It is the umbral shadow that causes the moon to disappear. This eclipse looks to be a great one. Since the Moon and Earth are not perfectly lined up (as witnessed by such a short umbral stage), the Moon is in a position to reflect back the light of both the sunrise and sunset. When this happens, the Moon oftentimes takes on a deep-red (the color of blood) color. In ancient times this "Blood Moon" was a sign of impending doom or disaster.