The instruments scientists are using to find signs of life on may not actually be sensitive enough to do so, a study has found.Researchers from the Autonomous University of Chile tested the sophisticated gadgets used by 's Curiosity and Perseverance rovers in the Atacama Desert.While laboratory equipment identified biosignatures - molecules that indicate the existence of life, past or present - in the samples, locating them using rover technology was found to be 'barely possible'.
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