Space voyaging rock reveals insight into detecting life on other planets

(PhysOrg.com) -- Intelligent life from other planets would be able to tell that Earth is inhabited if they had come into contact with a space voyaging piece of Orkney rock, scientists have revealed.

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<p><a href="http://www.physorg.com/news142175898.html">Space voyaging rock reveals insight into detecting life on other planets</a></p> <p>(PhysOrg.com) -- Intelligent life from other planets would be able to tell that Earth is inhabited if they had come into contact with a space voyaging piece of Orkney rock, scientists have revealed.</p>