Brain changes associated with Alzheimer’s may begin at least seven years before amyloid plaques become detectable with current PET scans.

Persistent financial hardship in early and middle adulthood was linked to poorer thinking skills by the 50s and more signs

Solar sails pushed by powerful lasers could reach incredible speeds, but relativity may eventually make the light itself work against

NASA-funded studies suggest Earth’s climate has been influenced by both the Sun’s travels through dense regions of the Milky Way

A search for one mysterious particle unexpectedly revealed evidence for two different structures that may belong to the bizarre family

Following nearly 10,000 older women for 10 years, researchers found that tea drinking was associated with slightly higher hip bone

NASA has brought two of Swift’s telescopes back online after technical problems derailed a commercial mission intended to rescue the

A vast plume rising from deep inside Earth may be responsible for mysterious movements along the East African Rift. The

A study of people over 90 found that dementia risk remains strongly shaped by sex, race and genetics, with women

Snake embryos begin life curled into a distinctive right-handed spiral, and scientists may finally know why. Their bodies grow faster