The Los Angeles County Department of Public Health Tuesday issued warnings to avoid ocean waters at several beaches due to high bacteria levels. The affected beaches are: — The Bel Air Bay Club at ...

Generative artificial intelligence (AI) is a potentially important new technology, but its impact on the economy depends on the speed and intensity of adoption. This paper reports results from a ...

A SpaceX spacecraft returning to Earth with four astronauts made its arrival known overnight with a sonic boom.