Meteor Watch Day
Meteor Watch Day is held on June 30. This event in the third decade of the month June is annual.
Meteors are bits of rocks and ice ejected from comets as they move in their orbits about the sun. A meteor that reaches the ground it is called a meteorite. A meteor shower occurs when the Earth passes through the trail of debris left by a comet or asteroid.
Approximately 30 meteor showers occur each year that are visible to observers on Earth. Some of these showers have been around longer than 100 years. For example, the Perseid meteor shower, which occurs each year in August, was first observed about 2000 years ago and recorded in the Chinese annals. Meteors are sometimes observed with red, yellow or green trails.