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Little Evidence That Popular Food Intolerance Test Works

EverlyWell says it can determine which foods to avoid through an at-home blood test, but experts say the science is shaky.

California Sues Over Plan to Scrap Car Emission Standards

California and 16 other states have filed a lawsuit against the Trump administration over its plans to scrap gas mileage and vehicle emission standards for greenhouse gases, Gov. Jerry Brown and Attorney General Xavier Becerra announced Tuesday.

Why Do Tumbleweeds Tumble?

The silent star of classic Westerns is a plant on a mission. It starts out green and full of life. It even grows flowers. But to reproduce effectively, it needs to turn into a rolling brown skeleton. Check out our new Deep Look!

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Tetra Tech Scandal: Was Radioactive Material Shipped to Pittsburg Landfill?

A Contra Costa County supervisor is asking for an investigation into allegations that radioactive material was possibly sent to the Keller Canyon Landfill in Pittsburg, California.

Straw Wars! Bay Area Push to Ban Plastic Straws Picks Up Steam

It's the last straw for Berkeley and Oakland; they want to reduce or ban them altogether from food vendors.

Investigator Says Free DNA Matching Site Used to Catch Golden State Killer

One of the main investigators who helped capture Joseph DeAngelo, the alleged California serial rapist and killer, says his team used a public DNA matching website to track DeAngelo down.

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Wildflower Walk at Presidio Coastal Bluffs

It’s springtime, and California wildflowers are beginning to bloom, including in our very own Golden Gate National Parks. Join the park stewardship team on Saturday, May 5, 10 a.m. – 12 p.m. for a walk in the Presidio along spectacular park trails and be prepared to be wowed by the range of colors, shapes, and scents!

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Support for KQED Science is provided by the Templeton Religion Trust and the Templeton World Charity Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Fuhs Family Foundation and the members of KQED.