AP: For decades, scientists have scanned the heavens in search of extraterrestrial life. Perhaps they should have looked closer to home. Variant life forms – most likely tiny microbes – could still be hanging around “right under or noses – or even in our noses,” Paul Davies, an award-winning Arizona State University physicist, told a group of scientists Tuesday.
“How do we know all life on earth descended from a single origin?” he said, speaking at London’s Royal Society, which serves as Britain’s academy of sciences. “We’ve just scratched the surface of the microbial world.
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