At an average age of 70, these women divers in South Korea still forage in the sea up to 10 hours a day and spend more than half of that time underwater.

In-flight defecation may help the birds stay away from feces that can contain pathogens such as bird flu while also fertilizing the ocean.

Adding a magnet could simplify the process of producing oxygen in space, making a crewed mission to Mars more feasible.

Found in Splenda, sucralose reduces immunotherapy efficacy via its effects on the gut microbiome, but arginine supplements might counter the outcome.

Analysis of the hair used in a knotted device reveals the owner’s simple diet. That suggests commoners, not just the elite, kept records in Inca society.

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

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

Producing a male-specific protein in digestion-related neurons may have led to the evolution of an odd “romantic” barfing behavior in one species of fruit flies.

Women face a small rise in fracture risk within 10 years of stopping therapy, suggesting the need for additional monitoring.

Sun-powered fliers could use photophoretic forces to hover in the mesosphere, gathering data from a region off limits to planes and balloons.

In The Martians, journalist David Baron recounts scientific and public debate over purported intelligent life on the Red Planet.

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