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

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.

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

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

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

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

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 ...

A cryptic announcement raises questions about the type of weapons and how they could be used. We talked to an expert about ...

Scientists have grown human brain tissue to fill most of a mouse’s cortex, creating a new model for studying brain disease ...

A honeycomb-shaped pattern in marine sediments has befuddled scientists for more than 150 years, but a new study points to a potential culprit. Renaissance artist and inventor Leonardo da Vinci ...

Removing a type of immune cell from lymph nodes in mice reduced brain inflammation and cell damage in a model of ...