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Scientists are training machine-learning models and designing instruments to hunt for life on other worlds. |
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“I think within our lifetime we will be able to do it,” says Ravi Kopparapu, a planetary scientist at NASA’s Goddard Space Flight Center in Maryland. “We will be able to know if there is life on other planets.” |
Just add in AI.
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Why (sic) counts as life? This problem—how to definitively differentiate between life and non-life—is a perennial one, whether you’re looking at distant planets or even phenomena here on Earth. Researchers may soon receive help from algorithmic techniques that can tease out associations too complex for the human brain to fathom. In recent experiments, Robert Hazen and his colleagues took 134 living and non-living samples (including petroleum, carbon-rich meteorites, ancient fossils, and a wasp that flew into their lab), vaporized them, and spread out their chemical constituents. Roughly 500,000 different attributes were identified within each sample’s molecular makeup and run through a machine-learning program. |
via International Skeptics Forum https://ift.tt/BKNan8H
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