Science

[:es]For more than a decade, Colin Dundas, a geologist at the U.S. Geological Survey in Flagstaff, Arizona, has had a daily routine: inspecting a dozen or so high-resolution images beamed […]

[:es]For the first time, scientists have produced evidence in living humans that the protein tau, which mars the brain in Alzheimer’s disease, spreads from neuron to neuron. Although such movement […]

[:es]When you’re sick, it’s written all over your face. [:]

[: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 […]

[: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 […]

[:es]A new study suggests that newborns associate the concept of “few” with “left” and “many” with “right,” supporting the idea that such bias might be innate.[:]

[:es]All life forms on Earth use the same genetic alphabet of the bases A, T, C, and G—nitrogen-containing compounds that constitute the building blocks of DNA and spell out the […]

[:es]Scientists have manipulated spirulina, a microscopic plant and food supplement, to travel through people in response to magnetic signals. The biohybrid robot could one day carry drugs to specific parts […]

[:es]A century after they were discovered killing bacteria in the feces of World War I soldiers, the viruses known as bacteriophages, or simply phages, are drawing new attention for the […]