Science

[:es]In the past 2000 years, Earth has drifted in and out of extended periods of warmer- and cooler-than-normal climate, including the so-called Medieval Warm Period and the Little Ice Age. […]

[:es]Dark matter, the mysterious substance that makes up most of the mass of the universe, has proved notoriously hard to detect. But scientists have now proposed a surprising new sensor: […]

[:es]Looking a squid in the eye is eerily like looking in a mirror. Squids, octopuses, and other cephalopods are on a very different part of the tree of life from […]

[:es]A collaboration of Chinese and Japanese astrophysicists has reported the highest energy photons ever seen: gamma rays with energies up to 450 trillion electron volts (TeV).[:]

[:es]As a schoolgirl in Israel, Michal Feldman learned that the ancient Philistines, who lived between present-day Tel Aviv and Gaza during the Iron Age, were «the bad guys.» In the […]

[:es]The idea that chemical tags on genes can affect their expression without altering the DNA sequence, once surprising, is the stuff of textbooks. The phenomenon, epigenetics, has now come to […]

[:es]Fast radio bursts (FRBs)—intense blasts of radio waves from distant galaxies—have perplexed astronomers since they were first detected a dozen years ago. The bursts are so brief, only about one-thousandth […]

[:es]The perpetual shortage of human organs for transplant has researchers turning to farm animals. Several biotech companies are genetically engineering pigs to make their organs more compatible with the human […]

[:es]In what may be a cautionary tale for citizen scientists trying to save North America’s iconic monarch butterfly, new research has found that butterflies raised in captivity are sometimes unable […]