Lunar events refer to phenomena that occur on the moon. The most common lunar event is an eclipse, which occurs when the Earth, moon, and sun are aligned in a straight line. During an eclipse, the moon passes through the Earth's shadow, causing the moon to appear darker than usual. Other lunar events include meteor showers, which occur when a comet passes close to the moon, and lunar ECLIPSES, which occur when the moon passes through the Earth's shadow.