Comets and Meteor Showers News, information, amateur and professional observations, research.
CONTOUR mission page Overview of instruments, latest news, Q&A section.
Deep Impact mission page Overview of mission and information on Comet Tempel 1.
Deep Space mission page Covers science of the mission, quick facts about Deep Space 1 and press releases and images.
Giotto mission page European Space Agency's page on this Halley's comet mission.
Nine Planets Comets page General information and images.
The Sakigake Mission Page Information and links to more information.
The Small Comets Page University of Iowa answers all of your questions regarding small comets.
The StarDust Mission page Covers first US mission dedicated solely to a comet.
The Suisei Mission Page Information and links to more information.
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Six spacecraft flew to Halley's comet in 1986. There were two spacecraft launched from Japan, named Suisei and Sakigake, and two from the Soviet Union, named Vega 1 & 2. One spacecraft, ICE, was from the...more
Astronomers have noticed a group of comets which they call the Jupiter Family of Comets. This family of comets is to be found circling between Jupiter and the sun, as shown in this picture. The comets...more
Scientists have learned a great deal from the crash of comet Shoemaker-Levy 9. Scientists traced the orbit of the comet backwards in time to guess its origin. The crash of a comet like Shoemaker-Levy 9...more
Mathematical theory suggests that comet Shoemaker-Levy 9 was likely a short-period comet which was captured into orbit around Jupiter in 1929. This orbit ended with a collision of the comet with Jupiter...more
As the ices of the comet nucleus evaporate, they expand into a large cloud around the middle part of the comet. This cloud, called the coma, is the atmosphere of the comet. It can extend for millions of...more
When evaporation begins, the gas is propelled from the nucleus at supersonic speed (depicted by arrows in the figure). Because of the low gravity in space, this means that the molecules from the nucleus...more