Microscopic meteorites show early life on Earth faced rain of rocks

(PhysOrg.com) -- Microscopic meteorites found in Scotland have unveiled major clues about a catastrophic event which dramatically altered the Earth’s surface nearly 500 million years ago.

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<p><a href="http://www.physorg.com/news149183713.html">Microscopic meteorites show early life on Earth faced rain of rocks</a></p> <p>(PhysOrg.com) -- Microscopic meteorites found in Scotland have unveiled major clues about a catastrophic event which dramatically altered the Earth’s surface nearly 500 million years ago.</p>