Cosmologist Paul Davies explores notion of 'alien' life on Earth

Astrobiologists have often pondered "life as we do not know it" in the context of extraterrestrial life, says Paul Davies, an internationally acclaimed theoretical physicist and cosmologist at Arizona State University. "But," he asks, "has there been a blind spot to the possibility of 'alien' life on Earth?"

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<p><a href="http://www.physorg.com/news153903714.html">Cosmologist Paul Davies explores notion of 'alien' life on Earth</a></p> <p>Astrobiologists have often pondered "life as we do not know it" in the context of extraterrestrial life, says Paul Davies, an internationally acclaimed theoretical physicist and cosmologist at Arizona State University. "But," he asks, "has there been a blind spot to the possibility of 'alien' life on Earth?"</p>