Kayaking in Northern California ranges from estuaries to mountain lakes, the San Francisco Bay to the American Fork River. We ...

Divided into five wilderness areas, this national forest in California is a colossal expanse with trails, backcountry camping ...

A strong solar storm occurred on May 30, and charged particles from the sun have been approaching the Earth at extreme speeds ...

Bay Area astronomers say a severe geomagnetic storm could cause the northern lights to appear over the Bay Area again.

Early-stage AI startups are imbuing new life into San Francisco’s Northern Waterfront, after years of "for lease" signs ...

Streaks of colorful light could paint the sky over a large portion of the country on Sunday night into Monday morning amid a ...

U.S. President Donald Trump called in the California National Guard to protect federal personnel and buildings in LA on June ...

Peter Weiss, a faculty researcher and lecturer at the UC-Santa Cruz department of environmental sciences, said that despite a ...

Heather Knight is a reporter in San Francisco, leading The Times’s coverage of the Bay Area and Northern California. Soccer Fan Fears: The Trump administration’s policies may have contributed ...

Trump's latest rescission proposal would eliminate $30 million of money for public media stations in San Francisco.

A near-certain disaster looms for California, but there are real things people can do to prepare. Here's what to know about the risks.