Science

[:es]Just a month into a renewed observing campaign with a trio of detectors, physicists today announced they have spotted more gravitational waves—fleeting ripples in space set off when two massive objects such as black holes spiral into each other. The collaboration has now bagged 13 merging black hole pairs, as well as two pairs of…

[:es]The golden eagle has been hunted and revered by human cultures for thousands of years. Yet this may not have been a uniquely human devotion—Neanderthals, too, may have targeted these impressive birds of prey some 130,000 years ago, according to new research. What’s more, modern humans may have learned their eagle-catching techniques from their hominin…

[:es]Antarctica’s charismatic emperor penguins are thought to be particularly vulnerable to climate change, because warming waters are melting the sea ice where they live and breed. Now, the penguins have abandoned one of their biggest colonies after breeding pairs there failed to raise almost any new chicks in 3 years. Although the move cannot directly…

[:es]Over the past half-century, climate change has been blamed for heat waves, flooding, and rising seas. Now, researchers say warmer temperatures are widening the chasm separating richer and poorer countries, effectively boosting the economies of many wealthy polluters while dampening growth in much of the developing world. As a result, inequality between the haves and…

[:es]For nearly 40 years, the massive computer models used to simulate global climate have delivered a fairly consistent picture of how fast human carbon emissions might warm the world. But a host of global climate models developed for the United Nations’s next major assessment of global warming, due in 2021, are now showing a puzzling…

[:es]In February, the popular podcast The Joe Rogan Experience referred to an idea made famous by some books and TV shows: that an image of the Mayan King K’inich Janaab’ Pakal, carved onto the lid of his sarcophagus when he died in 683 C.E., shows him taking off in a spaceship. Host Rogan was skeptical…

[:es]More than half a billion years ago, our planet was a giant snowball hurtling through space. Glaciers blanketed the globe all the way to the equator in one of the mysterious “Snowball Earth” events geologists think occurred at least twice in Earth’s ancient past. Now, scientists have found that the final snowball episode likely ended…

[:es]Talk about getting something for nothing. Physicists predict that just by shooting charged particles through an electromagnetic field, it should be possible to generate light from the empty vacuum. In principle, the effect could provide a new way to test the fundamental theory of electricity and magnetism, known as quantum electrodynamics, the most precise theory…

[:es]“Futile”—that’s the devastating label now attached to two highly anticipated clinical trials of a drug that targets β-amyloid, the neuron-killing protein fragment littering the brains of people with Alzheimer’s disease. Biogen in Cambridge, Massachusetts, and Eisai in Tokyo, the pharmaceutical partners developing the drug, called aducanumab, today announced their decision to halt a pair of…