Water bears can survive extreme temperatures, oxidative stress, UV radiation, and more, but as work in climate change biology shows, they’re not invulnerable to everything.

A new inhibitor gives researchers the ability to control programmed cell death in cultured human T cells.

Under UV light, flying squirrels give off a rosy glow.

A university investigation has so far found no wrongdoing by the principal investigator.

A new nanoparticle-based sunblock is effective, long-lasting, and may eliminate absorption of potentially harmful chemicals into the skin and bloodstream, a mouse study shows.

Researchers uncover a previously unknown way UV light can act on melanin, spurring cancer-causing mutations hours after sun exposure.

Chronic exposure to ultraviolet light leads to endorphin release and signs of addiction in mice.

UV light-emitting power lines may spook reindeer and other animals, a study finds.