Aerosols, small particles in the atmosphere like salt and dust, may offset a third of human-caused climate warming, though their influence is fading.

Flu viruses often enter the body through mucous tissue in the nose. Researchers are developing new ways to protect such areas.

The invasive spotted lanternfly has spread to 17 states and can threaten vineyards. But bats, fungi, dogs and even trees may help control them.

In two studies of mice, a molecule called leukotriene helped trigger food-induced anaphylaxis. A drug approved for asthma — zileuton — diminished it.

Researchers reconstructed a roughly 2,000-year-old woman’s tattoos, from prowling tigers to a fantastical griffinlike creature.

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.

A mysterious disease has been turning sea stars into goo since 2013. Now, there’s a leading suspect behind the killings — a bacterium called Vibrio pectenicida, researchers report August 4 in Nature ...

Golden apple snails can regrow full, functional eyes. Studying their genes may reveal how to repair human eye injuries.

The superclouds probably produce star-forming clouds of gas, since most nearby stellar nurseries are located within the giants.

Excavated implements suggest a Homo species arrived on Sulawesi over 1 million years ago, before a nearby island hosted hobbit ancestors.

Government agencies are rapidly adopting AI, but experts warn the push may outpace privacy safeguards and leave data vulnerable to leaks and attacks.

The recommended age for starting colorectal cancer screening is now 45. That shift may explain a rise in early cases.