We're all familiar with the idea of metallic life forms like sentient robots, but somewhere out there, metallic life may have actually evolved just like organic life has here on Earth. A Scottish research group is out to prove this is possible by creating reproducing and evolving synthetic cells made entirely out of metal.
There's really no reason why metallic life forms can't exist, it's just that we haven't met any and nobody's sure how it would work. To prove that it's at least physically possible, a team from the University of Glasgow has created some cell-like bubbles call iCHELLs out of metallic elements like tungsten bonded with oxygen and phosphorus.
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