上傳日期：2011-10-05
Visit http://science.nasa.gov/science-news/... for the full story.

Forecasters say Earth is heading for a stream of dust from
Comet 21P/Giacobini-Zinner. A close encounter with the comet's fragile debris could spark a meteor outburst over parts of our planet on October 8th.
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科學與技術
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※ 編輯: ott 時間: 2013-10-09 02:13:41