Meteor showers are cyclical, predictable events because they are formed from the icy rock debris shed by comets as they pass the Sun.
From the print magazine Astronomy, comes this excellent one-page introduction to meteors and meteor showers.
In recognition of his extensive comet research, Gary Kronk has been honored by the International Astronomical Union with a minor planet named after him.
The most popular meteor question online is, "When is the next meteor shower?" StarDate Online answers this question with a calendar of seven annual meteor showers...
These illustrated class notes from the introductory astronomy class University of Texas at Knoxville are a great resource.
