COVID-19 gave new urgency to the science of restoring smell

It was the juice that tipped him off. At lunch, Ícaro de A.T. Pires found the flavor of his grape juice muted, flattened into just water with sugar. There was no grape goodness. “I stopped eating lunch and went to the bathroom to try to smell the toothpaste and shampoo,” says Pires, an ear, nose […]

Here’s what triggers giant honeybees to do the wave

Giant honeybees send waves rippling across their open nests by flipping their abdomens upward in coordination, a sight that approaching predators seem to shy away from. A new study is revealing details about what triggers the behavior, known as shimmering. That shimmering is strongest when the bees are shown a dark object that moves against […]

5 people with lupus are in remission after CAR-T cell treatment

After receiving an experimental treatment to stop the body from attacking itself, five people no longer have any symptoms of lupus. That treatment, called CAR-T cell therapy, seems to have reset the patients’ immune systems, sending their autoimmune disease into remission, researchers report September 15 in Nature Medicine. It’s not yet clear how long the […]

How Kenyans help themselves and the planet by saving mangrove trees

On the fringe of Kenya’s Gazi village, 50 kilometers south of Mombasa, Mwatime Hamadi walks barefoot on a path of scorching-hot sand toward a thicket of trees that seem to float where the land meets the Indian Ocean. Behind her moves village life: Mothers carry babies on their backs while they hang laundry between palm […]

Not all camouflage is equal. Here are prey animals’ best options

From crabs to caterpillars, a wide range of animals successfully use camouflage to hamper detection by hungry predators. But some concealment strategies are more effective than others, a new study suggests. The analysis compiles and synthesizes data from scores of studies on animal camouflage. Comparisons between different camouflaging methods show that masquerading as specific objects […]

50 years ago, physicists got a whiff of what glues together protons

An experiment … at the CERN Laboratory in Geneva … gives an important clue to structural arrangements deep within the proton…. The result hints at the existence of a new and very strong fundamental interaction — the process that holds [quarks] together inside the protons.… A number of theorists have speculated about its nature and […]

Passing through the Milky Way’s arms may have helped form Earth’s solid ground

Earth’s journey through the Milky Way might have helped create the planet’s first continents. Comets may have bombarded Earth every time the early solar system traveled through our galaxy’s spiral arms, a new study suggests. Those recurring barrages in turn helped trigger the formation of our planet’s continental crust, researchers propose August 23 in Geology. […]

The discovery of the Kuiper Belt revamped our view of the solar system

On a Hawaiian mountaintop in the summer of 1992, a pair of scientists spotted a pinprick of light inching through the constellation Pisces. That unassuming object — located over a billion kilometers beyond Neptune — would rewrite our understanding of the solar system. Rather than an expanse of emptiness, there was something, a vast collection […]

News stories have caught spiders in a web of misinformation

Even spiders, it seems, have fallen victim to misinformation. Media reports about people’s encounters with spiders tend to be full of falsehoods with a distinctly negative spin. An analysis of a decade’s worth of newspaper stories from dozens of countries finds that nearly half of the reports contain errors, arachnologist Catherine Scott and colleagues report […]

Not one, but two asteroids might have slain the dinosaurs

Chicxulub, the asteroid that wiped out most dinosaurs, might have had a little sibling. Off the coast of West Africa, hundreds of meters beneath the seafloor, scientists have identified what appears to be the remains of an 8.5-kilometer-wide impact crater, which they’ve named Nadir. The team estimates that the crater formed roughly around the same […]