News
- Health & Medicine
Limiting global warming to 1.5 degrees C could prevent thousands of deaths in the U.S.
A study projecting heat-related mortality in 15 U.S. cities illustrates urban risk from global warming.
- Earth
Soil eroded by glaciers may have kick-started plate tectonics
How plate tectonics got going is a mystery. Now scientists say they’ve found a key part of the story: massive piles of sediment dumped in the ocean.
- Astronomy
The accretion disk around our galaxy’s black hole has been spotted at last
The Milky Way's central black hole has a disk of gas and dust orbiting it, astronomers can finally say with confidence.
- Environment
Chemicals in biodegradable food containers can leach into compost
PFAS compounds from compostable food containers could end being absorbed by plants and later eaten by people, though the health effects are unclear.
- Neuroscience
A new experiment didn’t find signs of dreaming in brain waves
Brain activity that powers dreams may reveal crucial insight into consciousness, but a new study failed to spot evidence of the neural flickers.
- Anthropology
Hominids may have been cutting-edge tool makers 2.6 million years ago
Contested finds point to a sharp shift in toolmaking by early members of the Homo genus.
- Life
Gut bacteria may change the way many drugs work in the body
A new survey of interactions between microbes and medications suggests that gut bacteria play a crucial role in how the body processes drugs.
- Health & Medicine
A fungus weaponized with a spider toxin can kill malaria mosquitoes
In controlled field experiments in Burkina Faso, a genetically engineered fungus reduced numbers of insecticide-resistant mosquitoes that can carry malaria.
- Chemistry
Vaping the sweetener sucralose may produce toxic chemicals
Sucralose in e-liquids can break down, increasing toxic aldehydes in vapors and producing harmful organochlorines, including a potential carcinogen.
- Planetary Science
Icy volcanoes on Pluto may have spewed organic-rich water
Planetary scientists found ammonia-rich ice near cracks on Pluto, suggesting the dwarf planet had recent icy volcanoes.
- Physics
In a first, scientists took the temperature of a sonic black hole
A lab-made black hole that traps sound, not light, emits radiation at a certain temperature, as Stephen Hawking first predicted.
- Physics
100 years ago, an eclipse proved Einstein right. Today, black holes do too — for now
In 1919, an eclipse affirmed Einstein’s famous general theory of relativity. Now scientists hope to use black holes to poke holes in that idea.
