19. How long are comets? (A K2S Question)

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The nucleus of a comet is usually a few miles across. The coma, or fuzzy head, of a comet may be a few thousand miles across. The tail of a comet can be up to several million miles long.

Answer provided by Alan Hale, Ph.D. & Capt. USN (Ret.) William Readdy


Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer


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