Science

Follow PBS NewsHour’s complete coverage of Science and Technology stories.

A procedure that lets doctors find abnormal growths in the colon through 3-D computer-generated images is at least as accurate as a more invasive conventional colonoscopy, suggests research that was presented Monday. Margaret Warner speaks with the study's lead author,…

Computer security technologists are racing to find ways to block ever-more complex computer worms and viruses that burrow into computers -- usually via e-mail -- and wreak havoc on network systems.

Some Native Americans who live on the dozen Indian reservations in eastern San Diego County have not received the same attention as other Californians for their suffering. Jeffrey Kaye of KCET-Los Angeles visited the devastated San Pasqual Reservation, where one…

The final installment of a three-part NOVA series about "String Theory," a new branch of science that seeks to explain nothing less than how the universe works, airs on PBS. Ray Suarez speaks with series host Brian Greene.

Cooler temperatures and dense fog brought encouragement to Californians after a week of wildfires that have killed 20 people, destroyed more than 2,800 homes and burned nearly 750,000 acres. Jeffrey Kaye reports from the Cedar Fire outside San Diego, which…

More temperate temperatures and some light rain moved into the San Bernadino Mountains and eastern San Diego County, but firefighters face flames fanned by winds that are still gusting to 40 miles per hour. Spencer Michels reports from California, and…

A giant geometric flare unleashed by the sun threatened to disrupt airline and satellite communications and trigger shutdowns on electrical power grids Wednesday. Margaret Warner talks to an expert about what causes solar flares and how they affect Earth.

The Latest