Search for alien life challenges current concepts, says U. of Colorado prof.

For scientists eying distant planets and solar systems for signs of alien activity, University of Colorado at Boulder Professor Carol Cleland suggests the first order of business is to keep an open mind.

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<p><a href="http://www.physorg.com/news11013.html">Search for alien life challenges current concepts, says U. of Colorado prof.</a></p> <p>For scientists eying distant planets and solar systems for signs of alien activity, University of Colorado at Boulder Professor Carol Cleland suggests the first order of business is to keep an open mind.</p>