Cosmological data suggest unexpected masses for neutrinos, including the possibility of zero or negative mass.

A timeline of 485 million years of Earth’s surface temperatures shows ancient greenhouse conditions were hotter than scientists thought.

When the virus that causes mpox jumped onto the international stage in 2022, countries around the world, including the United States, turned to vaccines targeting the closely related smallpox virus to ...

Practitioners of Ayurveda — a traditional Indian medicine system — have used the ashwagandha plant for thousands of years. These days, another group is giving the plant a fresh surge of ...

Black garden ants made tweaks to entrances, tunnels and chambers that may help prevent diseases from spreading.

Animals including mammals usually protect their brains from infiltrating microbes that can cause disease. But some fish seem to do just fine.

Unusual tusks on preserved skulls of dicynodonts influenced the look of a mythical beast painted by Southern Africa’s San people, a researcher suspects.

One of the most compelling potential signs of extraterrestrial communication might have an astrophysical explanation. Called the “Wow!” signal, the bright burst of radio waves has defied our ...

An analysis of tissue samples from nearly 1,200 older adults found that the more insertions individuals had, the younger they died.

Scientists have measured the strange quantum phenomenon of entanglement in top quarks, the heaviest fundamental subatomic particles known. It’s the first detection of entanglement between pairs of ...

The two plasma fountains, spanning 23 million light-years, could shape cosmic structures far beyond their home galaxy.

With explosive bursts of pollen, male Hypenea macrantha flowers knock some competitors’ deposits off hummingbird beaks before the birds reach females.