Santa Ana-fanned fires in autumn spread much faster than conflagrations in the dry summer months, but both will wreak more damage in the coming decades.

UC Davis researchers are encouraged by early results from tests to see if deliberately flooding farmland in winter can replenish aquifers without harming crops or affecting drinking water.

New center aims to make tests more affordable and accessible to doctors.

UC Berkeley research could reduce size, weight, cost, and power consumption of the sensors that help direct the vehicles.

Resurgence of cycling is taking a toll on middle-aged cyclists: More are getting hurt, and their injuries are more serious.

New solar cells absorb high-energy light at 30 times the concentration of conventional cells.

Robotic step training and noninvasive spinal stimulation enable patient to take thousands of steps.

The disorder contributes to a breakdown of the blood–brain barrier, which protects brain tissue.

New technique could pave the way for ultra low power and high-security wireless communication systems.

The state has built momentum on water reform, but rains from an expected El Niño could stall it.

Thanks to its prevalence as garbage in the ocean, plastics have been ingested by nine out of every 10 seabirds now living.

Citizen scientists are joining botanists to find and measure California's plant diversity.