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The Iranian foreign minister, Abbas Araghchi, claimed “good progress” had been made at the talks and Omani mediators predicted negotiations would reconvene at a technical level next week in Vienna.
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Perhaps it’s the biggest question science has left to answer, how did life begin? Now, molecular biologists in Cambridge university have discovered tiny molecules of RNA which they say might provide some clues. Science journalist and author Philip Ball explains what we know and whether we’ll ever find the origins of life on earth.