Monday 21 January 2019
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inquirer - 3 month ago

Evidence of earliest life on Earth disputed

PARIS, France -- When Australian scientists presented evidence in 2016 of life on Earth 3.7 billion years ago -- pushing the record back 220 million years -- it was a big deal, influencing even the search for life on Mars. But that discovery, based on an analysis of primordial rocks in Greenland, has now been challenged, with another team of researchers arguing in a study published Wednesday that the structures presented as proof of microbial activity were, in fact, geologically forged by underground hea

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