Genetic testing of two tiny tiger cats from Bolivia revealed a new species, adding a new branch to the feline family tree.

Daily sea surface temperatures in the region where El Niño develops are more extreme than at any point in recorded history.

The newest “Dragon Hatchling” AI model is testing whether skipping words in intermediate reasoning could cut computational cost.

Scientists engineered roses that made both a blue pigment and a colorless helper molecule that brought out its shade.

Incendiamoeba cascadensis can replicate at 145° F, breaking the heat tolerance record for eukaryotes, a domain of life that includes plants and animals.

The gas giant Beta Pictoris b, about 63 light-years away, has the mass of 10 Jupiters and a magnetic field thousands of times as strong as Earth’s.

A thickening cortex, as shown in MRIs, preceded amyloid-beta accumulation, a known hallmark of Alzheimer’s disease, by up to seven years.

Sanofi (Nasdaq: SNY) deprioritized its mRNA flu shot effort. But it is still vigorously defending its substantial share of the flu vaccine market, with its egg-grown Fluzone products and egg-free ...

For 27 years, the Southwest has been gripped by a historic drought. Scientists think it might be here to stay.

A sickle across the throat and a padlock on the toe were likely meant to keep this 17th-century Polish teen from resurrecting.

Editor in Chief Nancy Shute discusses existential threats to humankind: extreme heat, never-ending drought and a plan to provide Earth with sunlight on demand.

Before there were synthetic industrial adhesives, glue was made from animal byproducts. There was hide glue (made from cooking down animal hides), bone glue (produced by boiling animal bones) and fish ...