The rare fossil hints that differences in plumage may explain why some Cretaceous-era birds survived an asteroid impact but ...

Space scientists aren’t so sure. As light travels from space to the ground, it scatters off molecules in the atmosphere, says ...

A record player-like microscope and computer simulations solve a longtime mystery, showing that metal ions bridge DNA strands ...

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

When AI agents hack real systems, the bigger issue may be the human choices that gave them access, autonomy and too few ...

As human-caused climate warming destabilizes high mountain regions, the threat of rock-ice avalanches and other glacial ...

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

The XENONnT detector glimpsed the ethereal subatomic particles that are born from the main type of fusion reaction that ...

Major hormonal milestones in women’s lives are usually associated with changes in brain volume — but a new study shows ...

An expedition of a deep-sea trench near Australia uncovered the eerie sea spider specimens, whose glow may have been ...

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

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