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[:es]Every memory leaves its own imprint in the brain, and researchers are starting to work out what one looks like.[:]

[:es]While most people go to a garden if they want to see a butterfly’s scales in action, Timo van Eldijk’s search for wing scales required drilling more than a thousand feet into the ground. Then, he extracted fossilized insect bits from black sludge using a probe tipped with human nose hair.[:]

[:es]Researchers hoping to treat diseases caused by genetic mutations may have to seek alternative enzymes.[:]

[:es]Moon missions, ancient genomes and a publishing showdown are set to shape research.[:]

[:es]Drug development is a notoriously long and difficult process, often taking decades for new antibiotics to move from discovery and development to the shelves at the local pharmacy. But now, a group of researchers believe their new biosensor will speed up this process.[:]

[:es]For decades, an origin-of-life story starring RNA has prevailed. New research may be shaking that theory’s hold on our understanding of life’s beginnings.[:]

[:es]In 1992, researchers discovered evidence of what was then potentially the earliest life on Earth: 3.5-billion-year-old microscopic squiggles encased in Australian rocks. Since then, however, scientists have debated whether these imprints truly represent ancient microorganisms, and even if they do, whether they’re really that old. Now, a comprehensive analysis of these microfossils suggests that these…

[:es]Caroline S. Wagner and Koen Jonkers find a clear correlation between a nation’s scientific influence and the links it fosters with foreign researchers.[:]

[:es]For archaeologists, Afghanistan is virtually off-limits for fieldwork, as Taliban forces battle the Kabul government in far-flung provinces and security remains tenuous even in the capital. Yet U.S. and Afghan researchers are now finding thousands of never-before-cataloged ancient sites in the country, which for more than a millennium served as a crucial crossroads linking East…