U.N. leader asks Hollywood for help in fight against global climate change

Ban Ki-moon, the normally buttoned-up Secretary General of the United Nations, swept into Los Angeles during Oscar week playing the role...

Arthur Schatzkin dies at 62; epidemiologist studied relationship between cancer and diet

Dr. Arthur Schatzkin, an epidemiologist who overturned the widely held belief that eating a diet rich in fiber could prevent the...

Lawsuit alleges solar projects would harm sacred Native American sites

Stepping gingerly across a small mesa of manganese-stained stones, Alfredo Acosta Figueroa explained how the giant image of the creator...

Radiation from cellphone antenna boosts brain activity, study finds

The electromagnetic radiation emitted by a cellular phone's antenna appears to activate nearby regions of the brain to unusually high...

NASA: All looking good for Thursday shuttle launch

NASA moved closer Tuesday to sending space shuttle Discovery on its final voyage after a nearly four-month delay.

Dr. Charles Epstein dies at 77; geneticist survived attack by Unabomber

Dr. Charles Epstein, a UC San Francisco medical geneticist who studied Down syndrome and pioneered genetic counseling for families with...

Vines spreading at trees' expense in tropical forests, scientists say

Vines may be proliferating at the expense of trees in tropical forests across the Americas, scientists have found. This shift in abundance...

Gastric bypass more effective than other procedures, studies find

Less than a week after the Food and Drug Administration approved the marketing of Lap-Band weight-loss surgery to 11 million new patients, a...

SolarCity sees bright future for residential solar systems

SolarCity, the Bay Area company that is the leading provider of residential solar systems, shook up the renewable energy industry by...

Bullet train backers ask supporters to attend Fresno hearing

Advocates of the proposed California bullet train are planning to turn out hundreds of supporters this week at hearings before Rep. John...

Ban on bone marrow sales challenged

A tall, blue-eyed blonde with an Ivy League education can command five figures when she sells her eggs to aspiring parents. People who...

Federal officials travel to California to reach out to off-roaders

Freed from the confines of Washington, Interior Secretary Ken Salazar on Sunday kicked up his heels in the California desert, where he...

BP says oil spill claims formula is too generous

The administrator of the $20-billion fund for Gulf of Mexico oil spill victims, under fire for red tape and delays, has been told by BP that...

More than 100 charged nationwide with Medicare fraud

The federal government's Medicare Fraud Task Force on Thursday brought criminal charges against doctors, nurses and healthcare company...

Black bears' metabolism dips significantly during hibernation, study shows

Black bears have a method of hibernation previously unobserved in any mammal, researchers reported Thursday.