L.A. Times - Science

Although many environmental experts praised the efforts of first responders, they remained skeptical that no toxic substances had been released.

Orange County fire official says a potential crack found on a pressurized chemical tank in Garden Grove might alleviated internal pressure, reducing risk of a catastrophic explosion.

In announcing its findings, the EPA cited federal lead standards only, and not California's more stringent thresholds.

Victor Glover, who grew up in the Inland Empire, is now the only pilot to have flown NASA's Orion capsule.

Brown pelicans and other coastal birds are appearing at rescue centers in droves as Pacific heat wave broils coastal waters

The 19 infections were linked to Kaiser's medical center in Santa Clara. Most of those who fell sick are recovering at home, Kaiser said in a statement last week.

The expanded number of teams at this year's men's World Cup will help make the games the worst for the climate in history, mainly because of massive air travel.

Officials have confirmed a measles case in a Los Angeles County resident who recently traveled internationally.

California health officials have released new scientific findings about health risks from exposure to two air toxics present in California's ambient air, acrolein and ethylene oxide.

The MV Hondius was the epicenter of the first-ever deadly outbreak of hantavirus aboard a modern cruise ship. Was this a freak occurrence, or a sign of things to come?

More than 200 drugs in the pipeline for ALS are stuck in a system that favors big, slow-moving pharmaceutical companies.

Workers at Agresti Calf Ranch in the Central Valley also were spotted removing animals' horns, apparently without anesthesia.