A nice encyclopedia article from Wikipedia on comets describes what they are, their physical characteristics, gives a history of comet study, and provides a list of well-known comets.

A detailed look at comets. Content outlines our observational history, as well as the origins of comets and an explanation of the appearance of comets.

This site contains 5,161 images of the Hale-Bopp comet from 1995 to 2000. This incredible photo archive is definitely worth a visit.

NASA site explores what a comet's nucleus is composed of. Animation and photographs are provided as well.

Site provides extensive information in the study of comets. Includes excellent graphics that depict what comets look like as they travel through the solar system. Also includes information on how comets may have effected the Earth's...

An interactive book full of interesting information about comets - their discovery, beliefs about them, factual information, and famous comets. An 'All about comets' link at the bottom of the page has lots of background information on...

Explains the differences between asteroids and comets. Presents a chart showing a size comparison between some known asteroids and comets.

Provides a general overview of comets, asteroids, and meteorites. Content includes ways to identify them in the night sky, as well as detailed information on each type of small body.

Resource provides easy to understand information about comets. Click on the frequently asked question link to find out more about these mysterious celestial bodies.

Comet collision with Jupiter with lots of pictures and some text. Links to the information about the comet, the impacts, and observations made by four different spacecraft.

Learn how to recognize a comet by the type of tail it has.

Create your own comet using different combinations of chemical ingredients and see what it looks like when completed.

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...

Learn about comets: Where do comets come from? What brings comets near Earth? What makes comets look fuzzy? What do comets look like up close? What's inside a comet? Why do comets have tails?

This resource explains what comets are, where they come from, and how comets can cause meteor showers.

Amazing Science provides teachers with facts about comets that they can use as a reference or to stimulate class discussion. The science questions support the lesson's activities.

This site provides a report on comets, with many links to more detailed information. Content includes a focus on Halley's Comet, Hale Bopp, and Shoemaker-Levy 9.

A detailed description of comets, their distinct parts, and the known comets in our solar system. Links are also provided for additional information on related subjects.

Hands-on activity allows children to learn about comets by creating their own models using art supplies.

Provides a brief description of comets, where they come from, and the different parts that make up a comet.

While comets were historically thought to be ill omens of war and famine, recent science has revealed that these celestial wonders actually contain amino acids, the building blocks of life on Earth. Justin Dowd explores the implications...

Younger students learn why comets race through the sky as well as related vocabulary words and meanings.

Discover the latest scientific information about comets through a vast archive of photographs and scientific facts.

Discover interesting facts about comets, an icy time capsule left over from the birth of planets.