University of Iowa
University of Iowa: Small Comets
This site provides extensive information on the controversial theory that there are millions of small comets which continually burn up yearly in the earth's atmosphere.
National Earth Science Teachers Association
Windows to the Universe: Comets
This site takes readers on a comet adventure. Learn everything you ever wanted to know about comets--including how and where they come from, specific comets throughout history and different comet exploration missions. Interactives are...