Astronomers have determined the internal composition of a distant planet for the first time Disintegrating exoplanets, like the one illustrated here, spill their guts into space in a long cometlike ta...
After a year of rising bird flu cases among people in the United States, researchers are keeping a watchful eye on the H5N1 virus to slow further spread. Since early 2024, the country has recorded 66 ...
Ice cores hint at a volcanic eruption around the time of the burial in Stone Age Denmark More than 100 engraved stones unearthed in Denmark depict images of the sun. The stones, including the two show...
Studies in rats link high exposure to cancer, but there’s little science on its harm to people Some gummy and other candies get their bright color from the synthetic food dye Red No. 3, which the FDA ...
An artificial intelligence tool designs proteins that match toxins scientists want to target When snakes like this Mozambique spitting cobra bite, they deliver potent toxins to victims via their venom...
DNA clues hint men married into women-led communities Excavations of Iron Age skeletons such as this one from Celtic sites in southern England have produced genetic evidence reflecting social practice...
Toxic alkaloids are often antimicrobial, but some bacteria seem to be using them as food Alkaloid chemicals bathe the skins of poison dart frogs (such as the diablito (Oophaga sylvatica) of Ecuador, s...
Red squirrels fed peanuts showed signs of weaker bite force versus those getting their own nuts Squirrels love peanuts of course, but peanuts may not love them back. Populations of red squirrels fed a...
BMI labels some people as having a disease, even if their excess body fat isn’t causing harm Obesity could get a new definition and diagnostic criteria thanks to a global commission of health experts....
United by Fire explores lessons from the two largest blazes in Colorado history Flames devoured pines and other vegetation in the Arapaho National Forest and Rocky Mountain National Park during the Ea...
A common decongestant doesn’t work any better than a placebo, but that might be good enough Evidence suggests the placebo effect can offer some relief from coughs and stuffy noses. Tanja Ivanova/Momen...
An undiscovered population of ancient black holes may be lurking throughout the universe. These bottomless cosmic pits would have a lot in common with more familiar black holes; in some cases, the two...
