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A study adds to evidence that it's a matter of blood and genes. "Hopefully, there will be huge medical implications," says one researcher.

In a northern California valley stretching under miles of bright blue sky between two snowy volcanic peaks, Mt. Lassen and Mt. Shasta, Daniel Dahle is known as a godsend, a friend, a lifesaver, a companion until the end.

Many marketing claims about the potential benefits of probiotics have raced ahead of the science, say researchers who are now trying to catch up. One NIH study is investigating kids' gut microbes.

Mike Hughes had planned to launch himself Saturday over the Mojave Desert in a quest to prove the world is flat. But he didn't count on a federal agency's rejection — or a significant tech breakdown.

Stream now or tune in Thursday, Dec. 31, 2020 at 10 p.m. on KPBS 2

A California tech firm believes that artificial intelligence can help communities prepare for, and respond to, quakes.

The San Diego Zoo Tuesday announced the confirmed pregnancy, via artificial insemination, of one of its six southern white rhinos.

The 49th Congressional District race is at the tip of the spear of Democratic efforts to gain control of the House in November.

Knowing where rates of prevalence are highest — and lowest — can lead to new strategies for treatment and prevention. The map focuses on sub-Saharan Africa, the epicenter of the epidemic.

Fifty years after Apollo 11's historic moon landing, journalist Charles Fishman tells the story of the 410,000 men and women who helped make the mission a success.