Science Cast: Total Eclipse Of The Moon

An eclipse of the moon, also known as a lunar eclipse, is a celestial event that occurs when the Earth passes between the Sun and the Moon, causing the Earth's shadow to be cast upon the lunar surface. This alignment leads to a temporary dimming or darkening of the Moon's appearance. Lunar eclipses can only occur during a full moon when the Sun, Earth, and Moon are precisely aligned in a straight line or nearly so.