More than ever before, Silicon Valley firms want their workers at work.

This spring, as the tech industry is soaring out of the Great Recession, plans are in the works for a flurry of massive, perk-laden headquarters.

The SpaceX Dragon capsule returned to Earth on Tuesday with a full science load from the International Space Station - and a bunch of well-used children's Legos.

Britain's Court of Appeal on Tuesday threw out a lawsuit against the BBC by electric car maker Tesla Motors over a program that criticized its Roadster vehicle.

As 21st century technology strains to become ever faster, cleaner and cheaper, an invention from more than 200 years ago keeps holding it back. It's why electric cars aren't clogging the roads and why Boeing's new ultra-efficient 787 Dreamliners aren't flying high.

Lithium batteries that can leak corrosive fluid and start fires have emerged as the chief safety concern involving Boeing's 787 Dreamliner, a problem that apparently is far more serious than government or company officials acknowledged less than a week ago.

Oregon state officials are proposing an alternative tax for drivers who have bought efficient or electric vehicles that seldom or never stop at the gasoline pump, where government has traditionally collected money to build and fix roads.

One scientist sure thinks so: 'If we are able to realize the energy from Thorium, it really will be the end of energy crisis on Earth for the rest of human history.'

Nissan's quarterly profit rose nearly 8 percent, but the Japanese automaker lowered its full-year forecasts Tuesday because of a sales slump in China and weakness in Europe.

Auto parts maker Johnson Controls is stepping away from its position as the debtor-in-possession lender during the bankruptcy proces

Short of cash and hurting from weak sales of electric cars, battery maker A123 Systems Inc. filed for bankruptcy protection on Tuesday and quickly sold its automotive assets.