Science

[:es]North America’s birds are disappearing from the skies at a rate that’s shocking even to ornithologists. Since the 1970s, the continent has lost 3 billion birds, nearly 30% of the […]

[:es]Physicists have set a new limit on the mass of nature’s lightest particle of matter. The neutrino can weigh no more than 1.1 electron volts (eV)—less than one-500,000th the mass […]

[:es]Solar panels are great for powering devices during the day. But they don’t work after the sun goes down. Now, a new technology that takes advantage of the cold darkness […]

[:es]Forget the legendary lost continent of Atlantis. Geologists have reconstructed, time slice by time slice, a nearly quarter-of-a-billion-year-long history of a vanished landmass that now lies submerged, not beneath an […]

[:es]In the thousands of years we’ve lived with dogs, we’ve transformed them from fearsome wolves to fluffy, tail-wagging Frisbee catchers that range in size from tiny pomeranians to towering great […]

[:es]When we think of how humans have altered the planet, greenhouse gas warming, industrial pollution, and nuclear fallout usually spring to mind. But now, a new study invites us to […]

[:es]If Gao Caixia were a farmer, she might be spread a little thin. Down the hall from her office at a branch of the Chinese Academy of Sciences (CAS) here […]

[: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: […]