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

The Webb telescope found that a far-off little red dot is the oldest known black hole, shrouded by gas that could help explain the ruby color.

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

A Kenyan site shows early hominids transported stone 13 kilometers for toolmaking as early as 2.6 million years ago.

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

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

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.

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.

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

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