News
- Physics
Sunlight is all that’s needed to keep these tiny aircraft aloft
Sun-powered fliers could use photophoretic forces to hover in the mesosphere, gathering data from a region off limits to planes and balloons.
- Animals
Warm autumns could be a driver in monarch butterflies’ decline
In the lab, higher temperatures during fall migration led monarchs to break their reproductive pause, increasing their risk of death.
- Humans
Stopping menopausal hormones may require more bone monitoring
Women face a small rise in fracture risk within 10 years of stopping therapy, suggesting the need for additional monitoring.
- Health & Medicine
The sugar substitute sucralose makes immunotherapy less effective
Found in Splenda, sucralose reduces immunotherapy efficacy via its effects on the gut microbiome, but arginine supplements might counter the outcome.
- Materials Science
Scientists re-create a legendary golden fabric from clam waste
Sea silk, once spun from endangered clams, may make a comeback — thanks to discarded fibers from a farmed species. The find could sustainably revive a fading art.
- Paleontology
Dinosaur teeth reveal some were picky eaters
The enamel in fossilized teeth reveals some dinosaurs preferred to eat particular parts of plants.
- Health & Medicine
How flossing a mouse’s teeth could lead to a new kind of vaccine
Flu viruses often enter the body through mucous tissue in the nose. Researchers are developing new ways to protect such areas.
- Life
Squashing the spotted lanternfly problem may require enlisting other species
The invasive spotted lanternfly has spread to 17 states and can threaten vineyards. But bats, fungi, dogs and even trees may help control them.
- Health & Medicine
New clues emerge on how foods spark anaphylaxis
In two studies of mice, a molecule called leukotriene helped trigger food-induced anaphylaxis. A drug approved for asthma — zileuton — diminished it.
- Planetary Science
A giant planet may orbit our closest sunlike neighbor
Alpha Centauri A, four light-years from Earth, may host a gas giant. If confirmed, no Earthlike planets orbit in the star’s habitable zone.
- Archaeology
This ancient Siberian ice mummy had a talented tattooist
Researchers reconstructed a roughly 2,000-year-old woman’s tattoos, from prowling tigers to a fantastical griffinlike creature.
- Archaeology
7 stone tools might rewrite the timeline of hominid migration in Indonesia
Excavated implements suggest a Homo species arrived on Sulawesi over 1 million years ago, before a nearby island hosted hobbit ancestors.
