It could rain for many hours each day in the middle of next week as a storm takes a swing through Southern California, ...

Taking longer to drift into the dreaming phase – known as rapid eye movement (REM) sleep – could be an early sign of Alzheimer's disease, potentially opening up new ways to diagnose and treat the ...

Chinese AI startup DeepSeek has shaken the self-image of America's vaunted tech sector. A visit to San Francisco's AI ...