Aliens... of course, why didn't i think of that:
"Aliens may have sent microorganisms to Earth inside metal balls to create seed life on our planet, an astrobiologist has claimed.
Dr Milton Wainwright claims to have found a tiny metal sphere that was oozing a 'gooey' substance in samples gathered by a balloon in the Earth's stratosphere.
The University of Sheffield and the University of Buckingham scientist says that the ball, which is about the width of a human hair, could be an example of directed panspermia - where life was deliberately sent to Earth by some unknown extraterrestrial civilisation.
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The metal sphere found by Dr Wainwright and his colleagues (above) appears to be oozing goo from its side
He argues that the strange material coming from the titanium ball is biological and could in fact be a colony of tiny microorganisms.
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