Hawaii's land board is hearing arguments for and against building a giant telescope on a mountain some consider sacred
Facebook's Sheryl Sandberg says the company is tightening its policies and tools that let businesses target advertisements to its 2 billion users
The loose soil beneath amplifies the ripple effects from earthquakes.
California must now decide what's next for upgrading its water delivery system after a key player rejected Gov. Jerry Brown's plans to build two giant tunnels
Cybersecurity firm warns that a suspected group of hackers in Iran are targeting the aviation and petrochemical industries in Saudi Arabia, the U.S. and South Korea
After a close call with extinction in the 20th century, the California condor is making a comeback
Space station's Joe Acaba had home flooded by one hurricane, family's homeland hit by another
Amazon issues an apology for a glitch that sent a gift alert to many recipients who didn't have a baby registry -- or baby.
President Donald Trump's nominee to oversee chemical safety at EPA has for years accepted payments for criticizing studies that raised concerns about the safety of his clients' products, according to an AP review
A group of powerful California farmers pulled their support for re-engineering the state's water system with a pair of massive $16 billion tunnels