According to the MIT Technology Review, astrobiologists have reportedly found an extra-terrestrial algae-like structure inside a Sri Lankan meteorite. The discovery could be considered evidence of panspermia, "the idea that life exists throughout the universe."
Wallis and co. are convinced that the lines of evidence they have gathered are powerful and persuasive. This provides clear and convincing evidence that these obviously ancient remains of extinct marine algae found embedded in the Polonnaruwa meteorite are indigenous to the stones and not the result of post-arrival microbial contaminants, they conclude.
Theres no question that a claim of this kind is likely to generate controversy. Critics have already pointed out that the stones could have been formed by lightning strikes on Earth although Wallis and co. counter by saying there was no evidence of lightning at the time of the fireball and that in any case, the stones do not bear the usual characteristics of this kind of strike. Whats more, the temperatures generated by lightning would have destroyed any biological content.
Nevertheless, extraordinary claims require extraordinary evidence and Wallis and co. will need to make their samples and evidence available to the scientific community for further study before the claims will be taken seriously.
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