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.

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

The hypothesis could extend the search for extraterrestrial life to include frigid planets with thin atmospheres and underground water.

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.

A warming climate is behind growing floods of glacier meltwater in Alaska’s capital. Scientists say it’s the new normal.

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

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

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

In the lab, higher temperatures during fall migration led monarchs to break their reproductive pause, increasing their risk of death.

One exercise outperformed walking, resistance training and aerobic exercise in the treatment of sleep disorders such as insomnia.

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

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.