Rather than scanning the skies for planets with the potential to support life, we could have just as much chance of uncovering alien existence closer to home, according to cosmologist Paul Davies.
He believes that undiscovered life forms could exist in microcosm on the earth, in environments which have remained unexplored simply because they are not thought to have the right biochemical composition to harbour living organisms.
"It could be that weird life and real life are intermingled, " says Davies, a professor at Arizona State University.
"As more terrestrial environments are explored it seems likely that new and ever more exotic forms of life will be discovered.
"If someone discovers shadow life or weird life, it will be the biggest sensation in biology since Darwin."
Source: Daily Mail
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