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Extreme wildfires have destroyed about one-fifth of all giant sequoia trees. To safeguard their future, the National Park Service is planting seedlings that could better survive a hotter climate.

Two big strategy games debut this week: the historical Total War: Pharaoh and the sci-fi Star Trek: Infinite. Both build on legacy predecessors, but with a heavy dose of the familiar.

The strike is being held by the California Faculty Association. The union represents roughly 29,000 professors, librarians, coaches and other workers. The group is fighting for a 12% salary increase.

Generative artificial intelligence is helping some young professionals create realistic headshots for a fraction of the price. The results, however, raise questions about how AI is trained.

Scientists believe the south pole region might hold frozen water that could help future astronaut missions.

In the 80% of Ukraine that remains in Kyiv's hands, two years of full-scale war with Russia have brought grief, destruction and, despite all, optimism.

As the world celebrates Democracy Day, we examined how some pillars of democracy are holding up in San Diego County.

A trained gynecologist, Gao became well-known across China for her relentless activism in exposing a man-made AIDS crisis and for her educational work to remove the stigma associated with HIV/AIDS.

Cinema Junkie chronicles a century of Black cinema, from silent films to superheroes and beyond.

How long does immunity last after an infection? Are rapid tests always accurate? How often is a booster in order? In this installment of our FAQ series, we look into questions about "COVID time."