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Comet references on wikipediaComet A comet is a Small Solar System Body that orbits the Sun. When close enough to the Sun, a comet exhibits a visible coma (fuzzy "atmosphere"), and sometimes a tail, both because of the effects of solar radiation upon the comet's nucleus. Comet nuclei are themselves loose collections of ice, dust and small rocky particles, ranging from a few kilometers to tens of kilometers across.
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Asod.info Astronomy Sketch of the Day
Astronomy.com Astronomy.com - Interactive Star Charts, Planets, Meteors, Comets, Telescopes
Bayeuxtapestry.org.uk Britain s Bayeux Tapestry
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Britannica.com Encyclopedia - Britannica Online Encyclopedia
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Cometary.net Cometary.net
Cometography.com Cometography
Cosmosmagazine.com COSMOS magazine | The science of everything
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Esa.int ESA Portal
Eso.org ESO
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Johnstonsarchive.net Johnston s Archive
Kvi.nl KVI: an international institute for atomic and subatomic physics < KVI < University of Groningen
Llnl.gov Lawrence Livermore National Laboratory
Meteorshowersonline.com Meteorshowersonline.com
Mit.edu MIT
Nasa.gov NASA - Home
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Nineplanets.org The Nine Planets Solar System Tour
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Sciam.com Science News, Articles and Information | Scientific American
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