The Golden State is awash with GOP candidates hoping to bag a trove of prized primary delegates.
The young murderer was an austere Muslim, but showed few signs of being radicalised.
Four men have been arrested in southern California and charged with plotting to kill Americans overseas by joining up with al-Qaeda.
Affirmative action supporters have asked a US federal appeals court to overturn California's ban on considering race in public college admissions.
Governator Schwarzenegger says no one cares if you smoke a joint.
Rafael Nadal and Novak Djokovic stayed on course for a semifinal showdown with third-round triumphs in the Indian Wells Masters series on Tuesday.
Sharing the stage at a mega-church, Barack Obama and John McCain hardly had time for anything but the political equivalent of an air kiss.
Firefighters battling a raging wildfire in the Sierra Nevada foothills of northern California caught a break early on Friday.
Naturalists are fearing for endangered California condors caught up in a massive two-week-old blaze still sweeping through the scenic Big Sur area.
A ferocious wildfire burning through the Los Padres National Forest continued creeping closer to the tourist town of Big Sur in California on Friday.
Artist Alton Kelley, who created the psychedelic style of posters and other art associated with the 1960s San Francisco rock scene, has died.
Same-sex couples across California exchanged vows and wedding bands on the first weekend since the state began allowing gays and lesbians to marry.
No one does casual understatement of other-worldly sporting achievement like Tiger Woods, but the world number one has surpassed even his own standards of quiet assertiveness.
Google shareholders got a free lunch on Thursday at the online search engine leader's first annual meeting as a public company. There were plenty of leftovers. Fewer than 200 people attended the meeting at the company's Mountain View headquarters -- a high-tech mecca known as the "Googleplex."
United States space shuttle Atlantis landed at Edwards Air Force Base in California on Friday after a fiery descent through the Earth's atmosphere that capped a two-week mission to the International Space Station. The shuttle touched down at Edwards at 19.49pm GMT, shimmering in the heat and sending up a plume of brownish-gray dust.
An astronomer has identified a planet with three suns far away in the galaxy -- the first of a class dubbed "Tatooine planets" after the home of Luke Skywalker, the young hero of the Star Wars films. The stars are about as close to each other as Saturn is to the sun.
A raucous welcome greeted Michael Jackson as he returned to his Neverland Ranch after being acquitted on all counts in his child molestation trial -- a victory that triggered jubilation among the pop star's fans and embarrassment for the district attorney's office. "All of us here and millions around the world love and support you," proclaimed a banner.
Scientists have developed a potentially revolutionary technique to permanently rewrite any gene in the human body. The breakthrough brings hope to millions of people with genetic diseases but campaigners have warned that the technology could be abused by parents who want to alter the physical characteristics of their children after they are born.