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Oort's Cloud |
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Oort's Cloud [′ȯrts ‚klau̇d] (astronomy) A cloud of comets at distances from 75,000 to 150,000 astronomical units from the sun, which has been proposed as a source of comets that pass near the sun. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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