Wednesday, July 19, 2017

Finding Extraterrestrial Life By Their Leftovers

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Finding Extraterrestrial Life By Their Leftovers

     When the famous 15th-century inventor and scientist Leonardo da Vinci examined petrified shells with borings in them long ago, he had a remarkable insight. The strange fossilized formations, he determined, were likely left behind by ancient organisms.
By Elizabeth Howell

Half a millennium later, this perspective is potentially useful in our search for alien life, argues a new paper that appears in Earth-Science Reviews, whose findings were recently presented at the European Astrobiology Network Association congress in the Netherlands.


In this latest study, Baucon and his colleagues attempt to explain the best way to find extra-terrestrial traces. One method could be looking for "meandering" trails and burrows, which is an efficient way for microorganisms to look for food. ...

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