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Interstellar dust cloud may have iced Earth

Posted: 3/7/2005 12:00:00 AM   Reads: 343   Submitted By:clayroy   Category: New Science   Source: seattletimes.nwsource.com
Like an automobile passing through a dust storm, Earth’s passage through a giant cloud in space could have led to global freezing that virtually wiped out life on the planet hundreds of millions of years ago.
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