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Archaeologists found the 2,100-year-old tea leaves in the tomb of a Han dynasty emperor, suggesting tea was highly valued. But was the emperor drinking tea as we do, or using it as medicine?

You may be inclined to see a ravioli, a walnut or an empanada, but it's tough to deny that Pan's distinctive ridge makes a tasty impression. The images were taken by the Cassini spacecraft Thursday.

Schoolchildren throughout San Diego County will get lessons on African-American history this month. But many believe those lessons are too narrow, including former Xerox CEO Bernard Kinsey, who's sharing his collection of African-American art with teachers.

Robotics experts at Caltech and the University of Illinois Urbana-Champaign have created a robot that mimics the flight patterns of bats, including swerving and diving.

This weekend "Matilda" makes its San Diego debut, plus experience the inaugural AMT Festival.

When it comes to finding and preparing food, we're a continually inventive species. Anthropologist Barbara J. King asks: What are the food trends of the future?

The same receptor on nerve endings that makes sinuses tingle when we eat wasabi plays an important role in the pain of inflammation. The first 3-D view of the receptor could lead to better pain drugs.

Rep. Adam Schiff said his proposed Orca Responsibility and Care Advancement (ORCA) Act would phase out the captivity of orcas, so no future generations of killer whales can be kept on display.

Airs Wednesday, Dec. 6, 2017 at 9:30 p.m. on KPBS TV

Think you may want to run for public office? A new site lets you crowdfund a potential campaign. See how a California congressional candidate was inspired to give it a try.