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

Just miles away from San Francisco International Airport, the air traffic control tower at the smaller San Carlos Airport is set to go dark this Saturday.

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

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 ...