Meteors and Comets (Early Bird Astronomy)"
	Категория: Научно-познавательная литература, Астрономия, космос
		Автор: Gregory Vogt Издательство: Lerner Год издания: 2010 isbn: 0761338764 Количество страниц: 48 Язык: english Формат: PDF Размер: 14 Мб Каталожный номер: 44314	Have you ever seen a shooting star? What you really saw was a meteor! A meteor is actually a chunk of metallic or stony matter - called a meteoroid - that enters the earth's atmosphere from outer space. A comet, on the other hand, is a lump of ice and dust that periodically comes into the center of the solar system from somewhere in its outer reaches. Learn more about meteors and comets in this lively and informative book! Ключевые теги: астрономия, космос
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	0 Опубликовал: nbvcxz | 13-11-2010, 17:12 | Просмотров: 668   Комментарии (0)  Печать